<|im_start|>system
You are a helpful assistant that is capable of understanding and predicting customer shopping behaviors on Amazon. You first think about the reasoning process in the mind and then predict the customer actions and action argument. The reasoning process and the predicted action and action argument are enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think>reasoning process here</think><answer>predicted action and action argument here</answer>.
<|im_end|>
<|im_start|>user
You are given a customer behavior trajectory on Amazon. This trajectory include the customer long-term information (enclosed between <|memory_start|> and <|memory_end|>), previous actions the customer has taken with timestamps (enclosed between <|action_start|> and <|action_end|>), and current observations describing what the customer sees on Amazon (e.g., a search results page, a product detail page) (enclosed between <|observation_start|> and <|observation_end|>). 
Now your task is to predict the immediate next action and action argument (i.e., input_text, product_asin, or click_type) of this shopper by analyzing shopper shopping behaviors. The available action space and action argument space are provided between <|actionspace_start|> and <|actionspace_end|> to help guide your prediction. Please first analyze the customer's behavior patterns within the  <think> </think> section, then provide your prediction within the <answer> </answer> section, ensuring your prediction falls within the specified action and argument spaces. 

<|actionspace_start|>
Available actions are represented in JSON format. There are four primary action types with their corresponding action arguments:
1. input:
Action: Type text into an input field to search for a specific product. 
Action Argument: the input_text is the specific text entered by the customer.
{
"timestamp": "timestamp",
"action": "input",
"action_argument": "input_text",
}

2. click:
Action: Click on a UI interface button or clickable element on the Amazon website.
Action Argument: The clickable_name is one of the UI interface buttons or clickable elements including "review", "search", "product_option", "other", "nav_bar", "quantity", "page_related", "suggested_term", "cart_side_bar", "cart_page_select", and "filter". Select one of these buttons or clickable elements as action argument.
{
"timestamp": "timestamp",
"action": "click",
"action_argument": "clickable_name",
}

3. click_product:
Action: Click on product links or product images.
Action Argument: the Amazon Standard Identification Number (i.e., product_asin) of the clicked product.
{
"timestamp": "timestamp",
"action": "click_product",
"action_argument": "product_asin",
}

4. purchase:
Action: indicate intent to purchase by clicking on any purchase-related button. This includes clicking "Add to Cart", "Buy Now", "Set Subscription", or "Checkout" buttons for specific products. 
Action Argument: the Amazon Standard Identification Number (i.e., product_asin) of the product being purchased.
{
"timestamp": "timestamp",
"action": "purchase",
"action_argument": "product_asin",
}
<|actionspace_end|>

<|memory_start|>
<|memory_end|>

<|action_start|>
{"timestamp": "2025-05-01T22:14:48.857Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-05-01T22:14:51.502Z", "action": "input", "action_argument": "white tall self"}
{"timestamp": "2025-05-01T22:14:51.790Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-05-01T22:15:31.687Z", "action": "input", "action_argument": "white tall cabinet"}
{"timestamp": "2025-05-01T22:15:31.993Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-05-01T22:20:49.680Z", "action": "input", "action_argument": "standing desk"}
{"timestamp": "2025-05-01T22:20:49.905Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-05-01T22:21:13.821Z", "action": "click_product", "action_argument": "B07Q3TGL7M"}
<|action_end|>

<|observation_start|>
Your context will be the JSON string containing page metadata of the Amazon page you are looking at. This Amazon page is the context you observed after performing your last action.
"search_term": [{"term": "standing desk"}],
"cart_items": [{"title": "Belkin MagSafe-Compatible Charger, 2-in-1 Magnetic Foldable Charger 15W - Qi2-Certified Wireless Charging for Apple iPhone 16, Apple Watch, Samsung Galaxy S25 w/Non-Slip Base, PSU Included - White", "asin": "B0D9WZB84X", "price": "$59.99", "quantity": "1"},
{"title": "Belkin MagSafe 2-in-1 Wireless Charging Stand for Apple iPhone 16, iPhone 15, iPhone 14, & iPhone 13 Series & AirPods - MagSafe Fast Charging Station for Multiple Devices - White", "asin": "B091J6BY3C", "price": "$74.00", "quantity": "1"},
{"title": "Foldable Magnetic Wireless Charger, KU XIU X40 Aluminum Alloy 3 in 1 Charging Station for Apple, Fast Mag-Safe Charger Stand for iPhone 16 15 14 13 12 Series, 5W for iWatch, AirPods 3/2/Pro, Gray", "asin": "B0BKPCXZQY", "price": "$65.79", "quantity": "1"},
{"title": "SAMSUNG T7 Shield Portable Solid State Drive USB 3.2 2TB, IP65 Water Resistant, External SSD Compatible with PC / Mac / Android / Gaming Consoles, MUPE2T0K/AM, 2022, Beige", "asin": "B09VLHP827", "price": "$152.91", "quantity": "1"},
{"title": "DenTek Instant Oral Pain Relief Maximum Strength Kit for Toothaches | 50 Count", "asin": "B00JAD7YD4", "price": "$7.43", "quantity": "1"},
{"title": "Naoki Matcha Superior Ceremonial Blend \u2013 Authentic Japanese First Harvest Ceremonial Grade Matcha Green Tea Powder from Uji, Kyoto (50g / 1.75oz)", "asin": "B09P45B5RC", "price": "$24.99", "quantity": "1"},
{"title": "Ember Temperature Control Smart Mug 2, 10 Oz, App-Controlled Heated Coffee Mug with 80 Min Battery Life and Improved Design, Rose Gold", "asin": "B08J28DH3N", "price": "$115.42", "quantity": "1"},
{"title": "Pintoo Jigsaw Puzzles 1200 Piece for Adults - Memeko - Coffee Studio Beautiful Plastic Puzzle for Home Decor Zero Dust Easy Storage [H3589]", "asin": "B0D32DKZ3S", "price": "$29.99", "quantity": "1"},
{"title": "Pintoo Jigsaw Puzzles 1000 Piece for Adults - Peiji - Overground Town of Steam Beautiful Plastic Puzzle for Home Decor Zero Dust Easy Storage [H3591]", "asin": "B0DCN7GMX7", "price": "$25.99", "quantity": "1"},
{"title": "Ticket to Ride Board Game - A Cross-Country Train Adventure for Friends and Family! Strategy Game for Kids & Adults, Ages 8+, 2-5 Players, 30-60 Minute Playtime, Made by Days of Wonder", "asin": "0975277324", "price": "$43.99", "quantity": "1"},
{"title": "Everdell Collectors Edition - by Starling Games - 1-4 Player Game - Build a City of Adorable Critters and constructs", "asin": "B07WWJMQFW", "price": "$100.00", "quantity": "1"},
{"title": "The Fox Experiment Board Game - Breed and Evolve Your Foxes! Strategy Game, Fun Family Game for Kids and Adults, Ages 10+, 1-4 Players, 60 Minute Playtime, Made by Pandasaurus Games", "asin": "B0CKXW6Y96", "price": "$52.33", "quantity": "1"},
{"title": "7 Wonders Board Game (New Edition) - Lead Your Civilization to Prosperity! Strategy Game for Kids and Adults, Ages 10+, 3-7 Players, 30 Minute Playtime, Made by Repos Production", "asin": "B08F65MX4L", "price": "$49.63", "quantity": "1"},
{"title": "AWOKE Silicone Painting Mat - 20\"X16\" Silicone Art Mat with 1 Water Cup for Kids - Craft Mat has12 Color Dividers - 2 Paint Dividers (White)", "asin": "B0BNSVRH14", "price": "$19.99", "quantity": "1"},
{"title": "Pintoo Jigsaw Puzzle Wall Tile Puzzle Set Cozy Corner Series - Seven of 56-Piece Wall Tile Puzzles Create 3D Displays with Restickable Strips No Glue Needed [HX1164]", "asin": "B09X181WM8", "price": "$29.99", "quantity": "1"},
{"title": "Pintoo Jigsaw Puzzle Wall Tile Puzzle Set Coffee Time Series - Six of 56-Piece Wall Tile Puzzles Create 3D Displays with Restickable Strips No Glue Needed [HX1162]", "asin": "B09X164WVZ", "price": "$24.30", "quantity": "1"},
{"title": "Pintoo Jigsaw Puzzles 1000 Piece for Adults - Cafe Life Beautiful Plastic Puzzle for Home Decor Zero Dust Easy Storage [H1593]", "asin": "B00FWMCOJQ", "price": "$25.99", "quantity": "1"},
{"title": "Pintoo Jigsaw Puzzles 1000 Piece for Adults - Peiji - Delicious Monogatari - Night Beautiful Plastic Puzzle for Home Decor Zero Dust Easy Storage [H3206]", "asin": "B0CWSR7XTD", "price": "$25.99", "quantity": "1"},
{"title": "Refintural Miniature Frog Figurines - Funny Frog Sculpture for Shelf, Desk Decoration - Frog Desk Accessories - Perfect Cute Frog Gift for Frog Lovers(Pink Sofa)", "asin": "B0CM9838TL", "price": "$9.99", "quantity": "1"},
{"title": "ALINK 16 oz Bubble Drinking Water Glasses Tumblers- Glass Cups Cute Ripple Shaped Vintage Ribbed Glassware- Cocktail,Soda, Juice, Coffee, Milk - Set of 4", "asin": "B0CM6787ZH", "price": "$20.99", "quantity": "1"},
{"title": "Splendor Board Game (Packaging May Vary) - Master The Art of Wealth and Prestige! - Engaging Gem Mining Strategy Game for Kids & Adults, Ages 10+, 2-4 Players, 30 Min Playtime, Made by Space Cowboys", "asin": "B00IZEUFIA", "price": "$31.99", "quantity": "1"},
{"title": "MyPuzzle Japan: Mount Fuji, Vintage Poster - Premium 1000 Piece Jigsaw Puzzle for Adults", "asin": "B0BZ4SW73N", "price": "$39.99", "quantity": "1"},
{"title": "DIHOclub Ceramic Coffee Mug with Lid and Matching Spoon,Novelty 3D Golden Retriever Pattern Mug for Tea Milk Chocolate Juice,Cute Cup for Dog Lovers,Perfect Christmas Gifts-14 Ounces (green)", "asin": "B09HQDNMGB", "price": "$25.99", "quantity": "1"},
{"title": "DIHOclub Adorable 3D Ceramic Cat Mug with Lid and Spoon - Perfect for Coffee, Tea, Milk, and More - Ideal Gift for Animal Lovers - 14 Ounces (Green)", "asin": "B09HQH2SBT", "price": "$25.99", "quantity": "1"},
{"title": "Salonpas Pain Relieving Patch, LARGE, 6 Count, for Back, Neck, Shoulder, Knee Pain and Muscle Soreness, 8 Hour Pain Relief", "asin": "B01ITWHT7C", "price": "$5.23", "quantity": "1"},
{"title": "SneakERASERS Sole & Sneaker Cleaner, Premium Shoe Cleaner for Sneakers, Dual-Sided Sponges, Effective for Tennis Shoes & Women Men Sneakers, Gentle Rub Design Cleaner Kit, 10 Pack", "asin": "B0797FJQT8", "price": "$11.98", "quantity": "1"},
{"title": "Neosporin Original Antibiotic Ointment, 24-Hour Infection Prevention for Minor Wound, .5 oz", "asin": "B00164IIUI", "price": "$4.88", "quantity": "1"},
{"title": "Neosporin Original First Aid Antibiotic Ointment with Bacitracin Zinc For Infection Protection, Wound Care Treatment & Scar Appearance Minimizer for Minor Cuts, Scrapes and Burns, 1 oz", "asin": "B001ECQ778", "price": "$8.48", "quantity": "1"},
{"title": "Chantomoo Women's Cross Slippers Memory Foam Faux Fur Lined Slide Shoes Beige Size 7-8", "asin": "B0C6164N4K", "price": "$29.99", "quantity": "1"},
{"title": "The original Zip-It Hair Clog Remover 25-inch Overall Length Drain Snake Cleaner (3-Pack), Unclog Your Sink, Shower, & Tub Drain In Seconds \u2013 Non-toxic, Made in the USA", "asin": "B08FGH2V5Q", "price": "$14.95", "quantity": "1"},
{"title": "Gillette Venus Intimate Grooming Razors for Women, Bikini Razors for Women, 1 Venus Razor Bikini Trimmer, 2 Razor Blade Refills, Pink, (Package May Vary)", "asin": "B08JHVDNY1", "price": "$14.97", "quantity": "1"},
{"title": "Gillette Venus Sensitive Women's Disposable Razors - Single Package of 3 Razors", "asin": "B0039LMTAQ", "price": "$6.94", "quantity": "1"},
{"title": "Mighty Patch\u2122 Original patch from Hero Cosmetics - Hydrocolloid Acne Pimple Patch for Covering Zits and Blemishes in Face and Skin, Vegan-friendly and Not Tested on Animals (36 Count)", "asin": "B074PVTPBW", "price": "$12.99", "quantity": "1"},
{"title": "JUNG SAEM MOOL Cushion Puff Natural Cover Puff for Smooth Fitting with The Round Shape 2.1 Inch", "asin": "B09V277CWW", "price": "$5.00", "quantity": "1"},
{"title": "fwee Blurry Pudding Pot | Airbrushed Blush & Lip, Buildable Pigment, Long-lasting, Lightweight, Easy to Blend, Natural Soft Matte Finish - Dear (Coral Brown) | 0.17 oz", "asin": "B0CXWMPVT5", "price": "$16.00", "quantity": "1"},
{"title": "fwee Blurry Pudding Pot | Airbrushed Blush & Lip, Buildable Pigment, Long-lasting, Lightweight, Easy to Blend, Natural Soft Matte Finish - My (Peachy Nude) | 0.17 oz", "asin": "B0CXX23YPQ", "price": "$16.00", "quantity": "1"},
{"title": "fwee Blurry Pudding Pot | Airbrushed Blush & Lip, Buildable Pigment, Long-lasting, Lightweight, Easy to Blend, Natural Soft Matte Finish - Seventeen (Sunny Coral) | 0.17 oz", "asin": "B0CXWXF3QJ", "price": "$16.00", "quantity": "1"},
{"title": "fwee Fingerlike Silicone Lip Brush | Multi-purpose Makeup Blending Brush with Lid", "asin": "B0D2CHV24R", "price": "$8.00", "quantity": "1"},
{"title": "Compression Packing Cubes for Travel - Luggage and Backpack Organizer Packaging Cubes for Clothes by TRIPPED Travel Gear (White and Green, 2 Piece Set)", "asin": "B06Y3P22BR", "price": "$18.95", "quantity": "1"},
{"title": "coowoz Large Travel Backpack For Women Men,Carry On Backpack,Hiking Backpack Waterproof Outdoor Sports Rucksack Casual Daypack Travel Essentials\uff08Black\uff09", "asin": "B09QS8TJX3", "price": "$23.99", "quantity": "1"},
{"title": "Lamicall Tablet Floor Tripod Stand - 64.9\" Tablet Holder Mount with Adjustable Height for Stream/Watching with Bluetooth Remote, for iPad Pro 12.9, Mini, Air, iPhone and 4.7-13\" Tablet and Cellphone", "asin": "B08TC36KJL", "price": "$34.99", "quantity": "1"},
{"title": "elitehood Ipad Tripod Stand, Height Adjustable iPad Stand Holder & iPad Floor Stand with 360\u00b0 Rotating Mount for iPad Mini, iPad Air, iPad Pro and All 7.9-11.9 Inch Tablets", "asin": "B081YNQ9RV", "price": "$28.99", "quantity": "1"},
{"title": "Aokpsrt Bunny Kids Night Light - Rechargeable Lamp for Kids Room, Nursery & Toddler| Cute Room Decor | Perfect Gifts for Teen s Girls, Christmas, Birthdays, Graduation", "asin": "B0CFF1539L", "price": "$9.99", "quantity": "1"}],
"product_details": [{"asin": "B07Q3TGL7M"},
{"title": "SHW 55 x 28 Inches Electric Height Adjustable Standing Desk with Drawer and Memory Preset, Maple"},
{"price": "$209.97"},
{"bullet_list": "Electric Height Adjustment \u2013 One-touch motorized lift ranges from 28\" to 45\", ideal for switching between sitting and standing 4 Memory Presets \u2013 Easily save and access your favorite height positions with the digital handset controller Spacious 55\" Desktop \u2013 Provides generous space for dual monitors, keyboard, laptop, and work essentials Built-In Storage Drawer \u2013 Integrated drawer keeps your desktop clutter-free and essential items close at hand Durable & Stable Frame \u2013 Heavy-duty steel legs and two-stage telescopic base ensure smooth motion and stability Measures: 55\"W x 28\"D x 28-45\"H Patent No: US D934,012 S"}],
"product_quantity": [{"quantity": "1"}],
"product_options": [{"Color": "Maple"},
{"Size": "55-Inch"}],
"promotion_items": [{"title": "FLEXISPOT Comhar Electric Standing Desk with Drawers Charging USB Port, Height Adjustable 48\" Whole-Piece Quick Install Home Office Computer Laptop Table with Storage (Maple Top + White Frame)", "asin": "B08RJ5FXR5", "price": "$239.99", "quantity": ""},
{"title": "FLEXISPOT EN1 One Piece Standing Desk, 48 x 24 Inches Height Adjustable Desk Electric Stand up Desk Home Office Table for Computer Laptop (White Frame + Maple Desktop)", "asin": "B0CFV4N5TJ", "price": "$129.99", "quantity": ""},
{"title": "TIQLAB Height Adjustable Electric Standing Desk, 47 x 24 inch, Sit Stand Up Desk, Splice Board, Computer Home Office Desk, White Frame/Maple Top", "asin": "B0D4YYY6ZR", "price": "$119.99", "quantity": ""},
{"title": "Claiks Electric Standing Desk, Adjustable Height Stand up Desk, 48x24 Inches Sit Stand Home Office Desk with Splice Board, White Frame/Nature Top", "asin": "B0BZ7GVKZF", "price": "$159.99", "quantity": ""},
{"title": "farexon Electric Standing Desk Adjustable Height, 55 x 24 Inch Stand up Desk with Large Mouse Pad, Rolling Wheels & Foot Pad,27''-46'' Lifting Range Home Office Computer Desk(Oak Gray)", "asin": "B09V7T6TY9", "price": "$149.50", "quantity": ""},
{"title": "BANTI 48x24 Inch Electric Standing Desk with Double Drawers, Adjustable Height Stand Up Desk, Sit Stand Home Office Desk with Storage Shelf, Light Wood Top", "asin": "B0DKFNMS5V", "price": "$143.30", "quantity": ""},
{"title": "FLEXISPOT E6 MAX Bamboo Dual Motor 3 Stages Standing Desk 60x30 Inch Whole-Piece Board Electric Height Adjustable Stand Up Desk Large Load Capacity(White Frame + Bamboo Desktop)", "asin": "B0CWG8CNV1", "price": "$499.99", "quantity": ""},
{"title": "FLEXISPOT EN1 One-Piece Electric Standing Desk 48 x 30 Inch Desktop Adjustable Height Desk Home Office Computer Workstation Sit Stand up Desk (White Frame + White Top, 2 Packages)", "asin": "B07W42DSG8", "price": "$169.98", "quantity": ""},
{"title": "Furmax Electric Height Adjustable Standing Desk Large 55 x 24 Inches Sit Stand up Desk Home Office Computer Desk Memory Preset with T-Shaped Metal Bracket, Light Wood", "asin": "B0CS31MFNS", "price": "$119.99", "quantity": ""},
{"title": "BANTI 55x24 Inch Electric Standing Desk with Double Drawers, Adjustable Height Stand Up Desk, Sit Stand Home Office Desk with Storage Shelf, Light Rustic Brown Top", "asin": "B0DKFN7KVD", "price": "$169.99", "quantity": ""},
{"title": "HUANUO Electric Standing Desk, 48\" x 24\" Whole Piece Desktop, Adjustable Height Computer Desk, 4 Height Memory Settings, Sit Stand Up Desk for Home Office, White", "asin": "B0DCVMJY8Q", "price": "$109.99", "quantity": ""},
{"title": "TIQLAB Height Adjustable Electric Standing Desk, 47 x 24 inch, Sit Stand Up Desk, Splice Board, Computer Home Office Desk, White Frame/Maple Top", "asin": "B0D4YYY6ZR", "price": "$119.99", "quantity": ""},
{"title": "Claiks Electric Standing Desk, Adjustable Height Stand up Desk, 48x24 Inches Sit Stand Home Office Desk with Splice Board, White Frame/Nature Top", "asin": "B0BZ7GVKZF", "price": "$159.99", "quantity": ""},
{"title": "FLEXISPOT EN2 Whole-Piece Standing Desk with Clamp Power Strip, 48 x 24 Electric Stand Up Height Adjustable Desk with Cable Management (White Frame + 48\" Maple Top)", "asin": "B08BHN4ZSN", "price": "$159.98", "quantity": ""},
{"title": "FLEXISPOT EN2 Whole-Piece Standing Desk with Clamp Power Strip, 48 x 24 Electric Stand Up Height Adjustable Desk with Cable Management (White Frame + 48\" Maple Top)", "asin": "B08BHN4ZSN", "price": "$159.98", "quantity": ""},
{"title": "farexon Electric Standing Desk Adjustable Height, 55 x 24 Inch Stand up Desk with Large Mouse Pad, Rolling Wheels & Foot Pad,27''-46'' Lifting Range Home Office Computer Desk(Oak Gray)", "asin": "B09V7T6TY9", "price": "$149.50", "quantity": ""},
{"title": "Claiks Electric Standing Desk, Adjustable Height Stand up Desk, 55x24 Inches Sit Stand Home Office Desk with Splice Board, White Frame/Nature Top", "asin": "B0BZ7JYK91", "price": "$199.99", "quantity": ""},
{"title": "BANTI 48x24 Inch Electric Standing Desk with Double Drawers, Adjustable Height Stand Up Desk, Sit Stand Home Office Desk with Storage Shelf, Light Wood Top", "asin": "B0DKFNMS5V", "price": "$143.30", "quantity": ""},
{"title": "FLEXISPOT Comhar Electric Standing Desk with Drawers Charging USB Port, Height Adjustable 48\" Whole-Piece Quick Install Home Office Computer Laptop Table with Storage (Maple Top + White Frame)", "asin": "B08RJ5FXR5", "price": "$239.99", "quantity": ""},
{"title": "FLEXISPOT EN1 One Piece Standing Desk, 48 x 24 Inches Height Adjustable Desk Electric Stand up Desk Home Office Table for Computer Laptop (White Frame + Maple Desktop)", "asin": "B0CFV4N5TJ", "price": "$129.99", "quantity": ""},
{"title": "TIQLAB Height Adjustable Electric Standing Desk, 47 x 24 inch, Sit Stand Up Desk, Splice Board, Computer Home Office Desk, White Frame/Maple Top", "asin": "B0D4YYY6ZR", "price": "$119.99", "quantity": ""},
{"title": "Desk Clamp Power Strip USB C,40W Total Fast Charging Station,4 PD 20W USB C Ports, Nightstand Edge Mount Power Strip with 5 AC Outlets Surge Protector,6ft Cord,Fit 1.96\" Tabletop Edge", "asin": "59fa2a59", "price": "$31.99", "quantity": ""},
{"title": "balmstar Office Chair, Ergonomic High Back Comfy Desk Chairs and Flip-up Armrest Lumbar, Swivel Tilt Function Backrest Computer Chair,PU Rolling Wheels Capacity 350LBS (Khaki)", "asin": "/promo/A24HFAKC5UIWJS", "price": "$123.49", "quantity": ""},
{"title": "TEAMIX Large Dual Monitor Riser - Wood & Steel Desk Organization - Maple, 42 inch", "asin": "B0BGG94XCV", "price": "$45.99", "quantity": ""},
{"title": "TRALT Office Chair - Ergonomic Desk Chair with Adjustable Lumbar Support, Mesh Computer Chair, Executive Chairs for Home Office Comfortable Lumbar Support (White)", "asin": "/promo/A1NNL4PSNQ9VCZ", "price": "$139.99", "quantity": ""},
{"title": "SIHOO M18 Ergonomic Office Chair, Computer Desk Chair with Adjustable Headrest and Lumbar Support, High Back Executive Swivel Chair for Home Office (Dark Gray)", "asin": "B0CRRQ237S", "price": "$169.99", "quantity": ""},
{"title": "Amazon Basics Ergonomic Executive Office Desk Chair with Flip-up Armrests and Adjustable Height, Tilt and Lumbar Support, Cream Bonded Leather, 29.5\"D x 28\"W x 43\"H (Previously AmazonCommercial brand)", "asin": "B07V8ZMFDQ", "price": "$175.99", "quantity": ""}],
"comparison_items": [{"title": "SHW\u00a055 x 28 Inches Electric Height Adjustable Standing Desk with Drawer and Memory Preset, Maple", "asin": "B07Q3TGL7M", "price": "$209.97"},
{"title": "Monomi\u00a0Height Adjustable Electric Standing Desk, 55 x 24 Inches Stand up Desk, Sit Stand Home Office Computer Desk, Maple", "asin": "B0BQ65Y6GD", "price": "$129.99"},
{"title": "Furmax\u00a0Electric Height Adjustable Standing Desk Large 55 x 24 Inches Sit Stand Up Desk Home Office Computer Desk Memory Preset with T-Shaped Metal Bracket, Black", "asin": "B09W2HKC37", "price": "$104.99"},
{"title": "ErGear\u00a0Height Adjustable Electric Standing Desk, 55 x 28 Inches Sit Stand up Desk, Large Memory Computer Home Office Desk with Two-Piece Desktop (Black)", "asin": "B0B41Z34M7", "price": "$179.99"},
{"title": "TIQLAB\u00a0Height Adjustable Electric Standing Desk, 55 x 24 inch, Sit Stand Up Desk, Splice Board, Computer Home Office Desk, White Frame/Maple Top", "asin": "B0D4Z61QRG", "price": "$155.99"},
{"title": "Claiks\u00a0Electric Standing Desk, Adjustable Height Stand up Desk, 24x48 Inches Sit Stand Home Office Desk with Splice Board, Black Frame/Rustic Brown Top", "asin": "B0BZ7GXM4M", "price": "$109.99"}]
<|observation_end|>

# Output Format
Please provide your final answer in JSON format within <answer></answer> tags using the following schema (Note that the thinking process should be within 250 words and give enough output space for final answer):
"<answer>
{
"timestamp": "2025-05-01T22:21:42.990Z", // the timestamp when this action occurs.
"action": "string", // select one plausible action from: input, click_product, purchase, or click.
"acion_argument": "string", // select appropriate value based on action type: input_text, product_asin, clickable_name.
}
</answer>"

<|im_end|>
<|im_start|>assistant
<think>

user
<|im_start|>system
You are a helpful assistant that is capable of understanding and predicting customer shopping behaviors on Amazon. You first think about the reasoning process in the mind and then predict the customer actions and action argument. The reasoning process and the predicted action and action argument are enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think>reasoning process here</think><answer>predicted action and action argument here</answer>.
<|im_end|>
<|im_start|>user
You are given a customer behavior trajectory on Amazon. This trajectory include the customer long-term information (enclosed between <|memory_start|> and <|memory_end|>), previous actions the customer has taken with timestamps (enclosed between <|action_start|> and <|action_end|>), and current observations describing what the customer sees on Amazon (e.g., a search results page, a product detail page) (enclosed between <|observation_start|> and <|observation_end|>). 
Now your task is to predict the immediate next action and action argument (i.e., input_text, product_asin, or click_type) of this shopper by analyzing shopper shopping behaviors. The available action space and action argument space are provided between <|actionspace_start|> and <|actionspace_end|> to help guide your prediction. Please first analyze the customer's behavior patterns within the  <think> </think> section, then provide your prediction within the <answer> </answer> section, ensuring your prediction falls within the specified action and argument spaces. 

<|actionspace_start|>
Available actions are represented in JSON format. There are four primary action types with their corresponding action arguments:
1. input:
Action: Type text into an input field to search for a specific product. 
Action Argument: the input_text is the specific text entered by the customer.
{
"timestamp": "timestamp",
"action": "input",
"action_argument": "input_text",
}

2. click:
Action: Click on a UI interface button or clickable element on the Amazon website.
Action Argument: The clickable_name is one of the UI interface buttons or clickable elements including "review", "search", "product_option", "other", "nav_bar", "quantity", "page_related", "suggested_term", "cart_side_bar", "cart_page_select", and "filter". Select one of these buttons or clickable elements as action argument.
{
"timestamp": "timestamp",
"action": "click",
"action_argument": "clickable_name",
}

3. click_product:
Action: Click on product links or product images.
Action Argument: the Amazon Standard Identification Number (i.e., product_asin) of the clicked product.
{
"timestamp": "timestamp",
"action": "click_product",
"action_argument": "product_asin",
}

4. purchase:
Action: indicate intent to purchase by clicking on any purchase-related button. This includes clicking "Add to Cart", "Buy Now", "Set Subscription", or "Checkout" buttons for specific products. 
Action Argument: the Amazon Standard Identification Number (i.e., product_asin) of the product being purchased.
{
"timestamp": "timestamp",
"action": "purchase",
"action_argument": "product_asin",
}
<|actionspace_end|>

<|memory_start|>
<|memory_end|>

<|action_start|>
{"timestamp": "2025-05-01T22:14:48.857Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-05-01T22:14:51.502Z", "action": "input", "action_argument": "white tall self"}
{"timestamp": "2025-05-01T22:14:51.790Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-05-01T22:15:31.687Z", "action": "input", "action_argument": "white tall cabinet"}
{"timestamp": "2025-05-01T22:15:31.993Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-05-01T22:20:49.680Z", "action": "input", "action_argument": "standing desk"}
{"timestamp": "2025-05-01T22:20:49.905Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-05-01T22:21:13.821Z", "action": "click_product", "action_argument": "B07Q3TGL7M"}
<|action_end|>

<|observation_start|>
Your context will be the JSON string containing page metadata of the Amazon page you are looking at. This Amazon page is the context you observed after performing your last action.
"search_term": [{"term": "standing desk"}],
"cart_items": [{"title": "Belkin MagSafe-Compatible Charger, 2-in-1 Magnetic Foldable Charger 15W - Qi2-Certified Wireless Charging for Apple iPhone 16, Apple Watch, Samsung Galaxy S25 w/Non-Slip Base, PSU Included - White", "asin": "B0D9WZB84X", "price": "$59.99", "quantity": "1"},
{"title": "Belkin MagSafe 2-in-1 Wireless Charging Stand for Apple iPhone 16, iPhone 15, iPhone 14, & iPhone 13 Series & AirPods - MagSafe Fast Charging Station for Multiple Devices - White", "asin": "B091J6BY3C", "price": "$74.00", "quantity": "1"},
{"title": "Foldable Magnetic Wireless Charger, KU XIU X40 Aluminum Alloy 3 in 1 Charging Station for Apple, Fast Mag-Safe Charger Stand for iPhone 16 15 14 13 12 Series, 5W for iWatch, AirPods 3/2/Pro, Gray", "asin": "B0BKPCXZQY", "price": "$65.79", "quantity": "1"},
{"title": "SAMSUNG T7 Shield Portable Solid State Drive USB 3.2 2TB, IP65 Water Resistant, External SSD Compatible with PC / Mac / Android / Gaming Consoles, MUPE2T0K/AM, 2022, Beige", "asin": "B09VLHP827", "price": "$152.91", "quantity": "1"},
{"title": "DenTek Instant Oral Pain Relief Maximum Strength Kit for Toothaches | 50 Count", "asin": "B00JAD7YD4", "price": "$7.43", "quantity": "1"},
{"title": "Naoki Matcha Superior Ceremonial Blend \u2013 Authentic Japanese First Harvest Ceremonial Grade Matcha Green Tea Powder from Uji, Kyoto (50g / 1.75oz)", "asin": "B09P45B5RC", "price": "$24.99", "quantity": "1"},
{"title": "Ember Temperature Control Smart Mug 2, 10 Oz, App-Controlled Heated Coffee Mug with 80 Min Battery Life and Improved Design, Rose Gold", "asin": "B08J28DH3N", "price": "$115.42", "quantity": "1"},
{"title": "Pintoo Jigsaw Puzzles 1200 Piece for Adults - Memeko - Coffee Studio Beautiful Plastic Puzzle for Home Decor Zero Dust Easy Storage [H3589]", "asin": "B0D32DKZ3S", "price": "$29.99", "quantity": "1"},
{"title": "Pintoo Jigsaw Puzzles 1000 Piece for Adults - Peiji - Overground Town of Steam Beautiful Plastic Puzzle for Home Decor Zero Dust Easy Storage [H3591]", "asin": "B0DCN7GMX7", "price": "$25.99", "quantity": "1"},
{"title": "Ticket to Ride Board Game - A Cross-Country Train Adventure for Friends and Family! Strategy Game for Kids & Adults, Ages 8+, 2-5 Players, 30-60 Minute Playtime, Made by Days of Wonder", "asin": "0975277324", "price": "$43.99", "quantity": "1"},
{"title": "Everdell Collectors Edition - by Starling Games - 1-4 Player Game - Build a City of Adorable Critters and constructs", "asin": "B07WWJMQFW", "price": "$100.00", "quantity": "1"},
{"title": "The Fox Experiment Board Game - Breed and Evolve Your Foxes! Strategy Game, Fun Family Game for Kids and Adults, Ages 10+, 1-4 Players, 60 Minute Playtime, Made by Pandasaurus Games", "asin": "B0CKXW6Y96", "price": "$52.33", "quantity": "1"},
{"title": "7 Wonders Board Game (New Edition) - Lead Your Civilization to Prosperity! Strategy Game for Kids and Adults, Ages 10+, 3-7 Players, 30 Minute Playtime, Made by Repos Production", "asin": "B08F65MX4L", "price": "$49.63", "quantity": "1"},
{"title": "AWOKE Silicone Painting Mat - 20\"X16\" Silicone Art Mat with 1 Water Cup for Kids - Craft Mat has12 Color Dividers - 2 Paint Dividers (White)", "asin": "B0BNSVRH14", "price": "$19.99", "quantity": "1"},
{"title": "Pintoo Jigsaw Puzzle Wall Tile Puzzle Set Cozy Corner Series - Seven of 56-Piece Wall Tile Puzzles Create 3D Displays with Restickable Strips No Glue Needed [HX1164]", "asin": "B09X181WM8", "price": "$29.99", "quantity": "1"},
{"title": "Pintoo Jigsaw Puzzle Wall Tile Puzzle Set Coffee Time Series - Six of 56-Piece Wall Tile Puzzles Create 3D Displays with Restickable Strips No Glue Needed [HX1162]", "asin": "B09X164WVZ", "price": "$24.30", "quantity": "1"},
{"title": "Pintoo Jigsaw Puzzles 1000 Piece for Adults - Cafe Life Beautiful Plastic Puzzle for Home Decor Zero Dust Easy Storage [H1593]", "asin": "B00FWMCOJQ", "price": "$25.99", "quantity": "1"},
{"title": "Pintoo Jigsaw Puzzles 1000 Piece for Adults - Peiji - Delicious Monogatari - Night Beautiful Plastic Puzzle for Home Decor Zero Dust Easy Storage [H3206]", "asin": "B0CWSR7XTD", "price": "$25.99", "quantity": "1"},
{"title": "Refintural Miniature Frog Figurines - Funny Frog Sculpture for Shelf, Desk Decoration - Frog Desk Accessories - Perfect Cute Frog Gift for Frog Lovers(Pink Sofa)", "asin": "B0CM9838TL", "price": "$9.99", "quantity": "1"},
{"title": "ALINK 16 oz Bubble Drinking Water Glasses Tumblers- Glass Cups Cute Ripple Shaped Vintage Ribbed Glassware- Cocktail,Soda, Juice, Coffee, Milk - Set of 4", "asin": "B0CM6787ZH", "price": "$20.99", "quantity": "1"},
{"title": "Splendor Board Game (Packaging May Vary) - Master The Art of Wealth and Prestige! - Engaging Gem Mining Strategy Game for Kids & Adults, Ages 10+, 2-4 Players, 30 Min Playtime, Made by Space Cowboys", "asin": "B00IZEUFIA", "price": "$31.99", "quantity": "1"},
{"title": "MyPuzzle Japan: Mount Fuji, Vintage Poster - Premium 1000 Piece Jigsaw Puzzle for Adults", "asin": "B0BZ4SW73N", "price": "$39.99", "quantity": "1"},
{"title": "DIHOclub Ceramic Coffee Mug with Lid and Matching Spoon,Novelty 3D Golden Retriever Pattern Mug for Tea Milk Chocolate Juice,Cute Cup for Dog Lovers,Perfect Christmas Gifts-14 Ounces (green)", "asin": "B09HQDNMGB", "price": "$25.99", "quantity": "1"},
{"title": "DIHOclub Adorable 3D Ceramic Cat Mug with Lid and Spoon - Perfect for Coffee, Tea, Milk, and More - Ideal Gift for Animal Lovers - 14 Ounces (Green)", "asin": "B09HQH2SBT", "price": "$25.99", "quantity": "1"},
{"title": "Salonpas Pain Relieving Patch, LARGE, 6 Count, for Back, Neck, Shoulder, Knee Pain and Muscle Soreness, 8 Hour Pain Relief", "asin": "B01ITWHT7C", "price": "$5.23", "quantity": "1"},
{"title": "SneakERASERS Sole & Sneaker Cleaner, Premium Shoe Cleaner for Sneakers, Dual-Sided Sponges, Effective for Tennis Shoes & Women Men Sneakers, Gentle Rub Design Cleaner Kit, 10 Pack", "asin": "B0797FJQT8", "price": "$11.98", "quantity": "1"},
{"title": "Neosporin Original Antibiotic Ointment, 24-Hour Infection Prevention for Minor Wound, .5 oz", "asin": "B00164IIUI", "price": "$4.88", "quantity": "1"},
{"title": "Neosporin Original First Aid Antibiotic Ointment with Bacitracin Zinc For Infection Protection, Wound Care Treatment & Scar Appearance Minimizer for Minor Cuts, Scrapes and Burns, 1 oz", "asin": "B001ECQ778", "price": "$8.48", "quantity": "1"},
{"title": "Chantomoo Women's Cross Slippers Memory Foam Faux Fur Lined Slide Shoes Beige Size 7-8", "asin": "B0C6164N4K", "price": "$29.99", "quantity": "1"},
{"title": "The original Zip-It Hair Clog Remover 25-inch Overall Length Drain Snake Cleaner (3-Pack), Unclog Your Sink, Shower, & Tub Drain In Seconds \u2013 Non-toxic, Made in the USA", "asin": "B08FGH2V5Q", "price": "$14.95", "quantity": "1"},
{"title": "Gillette Venus Intimate Grooming Razors for Women, Bikini Razors for Women, 1 Venus Razor Bikini Trimmer, 2 Razor Blade Refills, Pink, (Package May Vary)", "asin": "B08JHVDNY1", "price": "$14.97", "quantity": "1"},
{"title": "Gillette Venus Sensitive Women's Disposable Razors - Single Package of 3 Razors", "asin": "B0039LMTAQ", "price": "$6.94", "quantity": "1"},
{"title": "Mighty Patch\u2122 Original patch from Hero Cosmetics - Hydrocolloid Acne Pimple Patch for Covering Zits and Blemishes in Face and Skin, Vegan-friendly and Not Tested on Animals (36 Count)", "asin": "B074PVTPBW", "price": "$12.99", "quantity": "1"},
{"title": "JUNG SAEM MOOL Cushion Puff Natural Cover Puff for Smooth Fitting with The Round Shape 2.1 Inch", "asin": "B09V277CWW", "price": "$5.00", "quantity": "1"},
{"title": "fwee Blurry Pudding Pot | Airbrushed Blush & Lip, Buildable Pigment, Long-lasting, Lightweight, Easy to Blend, Natural Soft Matte Finish - Dear (Coral Brown) | 0.17 oz", "asin": "B0CXWMPVT5", "price": "$16.00", "quantity": "1"},
{"title": "fwee Blurry Pudding Pot | Airbrushed Blush & Lip, Buildable Pigment, Long-lasting, Lightweight, Easy to Blend, Natural Soft Matte Finish - My (Peachy Nude) | 0.17 oz", "asin": "B0CXX23YPQ", "price": "$16.00", "quantity": "1"},
{"title": "fwee Blurry Pudding Pot | Airbrushed Blush & Lip, Buildable Pigment, Long-lasting, Lightweight, Easy to Blend, Natural Soft Matte Finish - Seventeen (Sunny Coral) | 0.17 oz", "asin": "B0CXWXF3QJ", "price": "$16.00", "quantity": "1"},
{"title": "fwee Fingerlike Silicone Lip Brush | Multi-purpose Makeup Blending Brush with Lid", "asin": "B0D2CHV24R", "price": "$8.00", "quantity": "1"},
{"title": "Compression Packing Cubes for Travel - Luggage and Backpack Organizer Packaging Cubes for Clothes by TRIPPED Travel Gear (White and Green, 2 Piece Set)", "asin": "B06Y3P22BR", "price": "$18.95", "quantity": "1"},
{"title": "coowoz Large Travel Backpack For Women Men,Carry On Backpack,Hiking Backpack Waterproof Outdoor Sports Rucksack Casual Daypack Travel Essentials\uff08Black\uff09", "asin": "B09QS8TJX3", "price": "$23.99", "quantity": "1"},
{"title": "Lamicall Tablet Floor Tripod Stand - 64.9\" Tablet Holder Mount with Adjustable Height for Stream/Watching with Bluetooth Remote, for iPad Pro 12.9, Mini, Air, iPhone and 4.7-13\" Tablet and Cellphone", "asin": "B08TC36KJL", "price": "$34.99", "quantity": "1"},
{"title": "elitehood Ipad Tripod Stand, Height Adjustable iPad Stand Holder & iPad Floor Stand with 360\u00b0 Rotating Mount for iPad Mini, iPad Air, iPad Pro and All 7.9-11.9 Inch Tablets", "asin": "B081YNQ9RV", "price": "$28.99", "quantity": "1"},
{"title": "Aokpsrt Bunny Kids Night Light - Rechargeable Lamp for Kids Room, Nursery & Toddler| Cute Room Decor | Perfect Gifts for Teen s Girls, Christmas, Birthdays, Graduation", "asin": "B0CFF1539L", "price": "$9.99", "quantity": "1"}],
"product_details": [{"asin": "B07Q3TGL7M"},
{"title": "SHW 55 x 28 Inches Electric Height Adjustable Standing Desk with Drawer and Memory Preset, Maple"},
{"price": "$209.97"},
{"bullet_list": "Electric Height Adjustment \u2013 One-touch motorized lift ranges from 28\" to 45\", ideal for switching between sitting and standing 4 Memory Presets \u2013 Easily save and access your favorite height positions with the digital handset controller Spacious 55\" Desktop \u2013 Provides generous space for dual monitors, keyboard, laptop, and work essentials Built-In Storage Drawer \u2013 Integrated drawer keeps your desktop clutter-free and essential items close at hand Durable & Stable Frame \u2013 Heavy-duty steel legs and two-stage telescopic base ensure smooth motion and stability Measures: 55\"W x 28\"D x 28-45\"H Patent No: US D934,012 S"}],
"product_quantity": [{"quantity": "1"}],
"product_options": [{"Color": "Maple"},
{"Size": "55-Inch"}],
"promotion_items": [{"title": "FLEXISPOT Comhar Electric Standing Desk with Drawers Charging USB Port, Height Adjustable 48\" Whole-Piece Quick Install Home Office Computer Laptop Table with Storage (Maple Top + White Frame)", "asin": "B08RJ5FXR5", "price": "$239.99", "quantity": ""},
{"title": "FLEXISPOT EN1 One Piece Standing Desk, 48 x 24 Inches Height Adjustable Desk Electric Stand up Desk Home Office Table for Computer Laptop (White Frame + Maple Desktop)", "asin": "B0CFV4N5TJ", "price": "$129.99", "quantity": ""},
{"title": "TIQLAB Height Adjustable Electric Standing Desk, 47 x 24 inch, Sit Stand Up Desk, Splice Board, Computer Home Office Desk, White Frame/Maple Top", "asin": "B0D4YYY6ZR", "price": "$119.99", "quantity": ""},
{"title": "Claiks Electric Standing Desk, Adjustable Height Stand up Desk, 48x24 Inches Sit Stand Home Office Desk with Splice Board, White Frame/Nature Top", "asin": "B0BZ7GVKZF", "price": "$159.99", "quantity": ""},
{"title": "farexon Electric Standing Desk Adjustable Height, 55 x 24 Inch Stand up Desk with Large Mouse Pad, Rolling Wheels & Foot Pad,27''-46'' Lifting Range Home Office Computer Desk(Oak Gray)", "asin": "B09V7T6TY9", "price": "$149.50", "quantity": ""},
{"title": "BANTI 48x24 Inch Electric Standing Desk with Double Drawers, Adjustable Height Stand Up Desk, Sit Stand Home Office Desk with Storage Shelf, Light Wood Top", "asin": "B0DKFNMS5V", "price": "$143.30", "quantity": ""},
{"title": "FLEXISPOT E6 MAX Bamboo Dual Motor 3 Stages Standing Desk 60x30 Inch Whole-Piece Board Electric Height Adjustable Stand Up Desk Large Load Capacity(White Frame + Bamboo Desktop)", "asin": "B0CWG8CNV1", "price": "$499.99", "quantity": ""},
{"title": "FLEXISPOT EN1 One-Piece Electric Standing Desk 48 x 30 Inch Desktop Adjustable Height Desk Home Office Computer Workstation Sit Stand up Desk (White Frame + White Top, 2 Packages)", "asin": "B07W42DSG8", "price": "$169.98", "quantity": ""},
{"title": "Furmax Electric Height Adjustable Standing Desk Large 55 x 24 Inches Sit Stand up Desk Home Office Computer Desk Memory Preset with T-Shaped Metal Bracket, Light Wood", "asin": "B0CS31MFNS", "price": "$119.99", "quantity": ""},
{"title": "BANTI 55x24 Inch Electric Standing Desk with Double Drawers, Adjustable Height Stand Up Desk, Sit Stand Home Office Desk with Storage Shelf, Light Rustic Brown Top", "asin": "B0DKFN7KVD", "price": "$169.99", "quantity": ""},
{"title": "HUANUO Electric Standing Desk, 48\" x 24\" Whole Piece Desktop, Adjustable Height Computer Desk, 4 Height Memory Settings, Sit Stand Up Desk for Home Office, White", "asin": "B0DCVMJY8Q", "price": "$109.99", "quantity": ""},
{"title": "TIQLAB Height Adjustable Electric Standing Desk, 47 x 24 inch, Sit Stand Up Desk, Splice Board, Computer Home Office Desk, White Frame/Maple Top", "asin": "B0D4YYY6ZR", "price": "$119.99", "quantity": ""},
{"title": "Claiks Electric Standing Desk, Adjustable Height Stand up Desk, 48x24 Inches Sit Stand Home Office Desk with Splice Board, White Frame/Nature Top", "asin": "B0BZ7GVKZF", "price": "$159.99", "quantity": ""},
{"title": "FLEXISPOT EN2 Whole-Piece Standing Desk with Clamp Power Strip, 48 x 24 Electric Stand Up Height Adjustable Desk with Cable Management (White Frame + 48\" Maple Top)", "asin": "B08BHN4ZSN", "price": "$159.98", "quantity": ""},
{"title": "FLEXISPOT EN2 Whole-Piece Standing Desk with Clamp Power Strip, 48 x 24 Electric Stand Up Height Adjustable Desk with Cable Management (White Frame + 48\" Maple Top)", "asin": "B08BHN4ZSN", "price": "$159.98", "quantity": ""},
{"title": "farexon Electric Standing Desk Adjustable Height, 55 x 24 Inch Stand up Desk with Large Mouse Pad, Rolling Wheels & Foot Pad,27''-46'' Lifting Range Home Office Computer Desk(Oak Gray)", "asin": "B09V7T6TY9", "price": "$149.50", "quantity": ""},
{"title": "Claiks Electric Standing Desk, Adjustable Height Stand up Desk, 55x24 Inches Sit Stand Home Office Desk with Splice Board, White Frame/Nature Top", "asin": "B0BZ7JYK91", "price": "$199.99", "quantity": ""},
{"title": "BANTI 48x24 Inch Electric Standing Desk with Double Drawers, Adjustable Height Stand Up Desk, Sit Stand Home Office Desk with Storage Shelf, Light Wood Top", "asin": "B0DKFNMS5V", "price": "$143.30", "quantity": ""},
{"title": "FLEXISPOT Comhar Electric Standing Desk with Drawers Charging USB Port, Height Adjustable 48\" Whole-Piece Quick Install Home Office Computer Laptop Table with Storage (Maple Top + White Frame)", "asin": "B08RJ5FXR5", "price": "$239.99", "quantity": ""},
{"title": "FLEXISPOT EN1 One Piece Standing Desk, 48 x 24 Inches Height Adjustable Desk Electric Stand up Desk Home Office Table for Computer Laptop (White Frame + Maple Desktop)", "asin": "B0CFV4N5TJ", "price": "$129.99", "quantity": ""},
{"title": "TIQLAB Height Adjustable Electric Standing Desk, 47 x 24 inch, Sit Stand Up Desk, Splice Board, Computer Home Office Desk, White Frame/Maple Top", "asin": "B0D4YYY6ZR", "price": "$119.99", "quantity": ""},
{"title": "Desk Clamp Power Strip USB C,40W Total Fast Charging Station,4 PD 20W USB C Ports, Nightstand Edge Mount Power Strip with 5 AC Outlets Surge Protector,6ft Cord,Fit 1.96\" Tabletop Edge", "asin": "59fa2a59", "price": "$31.99", "quantity": ""},
{"title": "balmstar Office Chair, Ergonomic High Back Comfy Desk Chairs and Flip-up Armrest Lumbar, Swivel Tilt Function Backrest Computer Chair,PU Rolling Wheels Capacity 350LBS (Khaki)", "asin": "/promo/A24HFAKC5UIWJS", "price": "$123.49", "quantity": ""},
{"title": "TEAMIX Large Dual Monitor Riser - Wood & Steel Desk Organization - Maple, 42 inch", "asin": "B0BGG94XCV", "price": "$45.99", "quantity": ""},
{"title": "TRALT Office Chair - Ergonomic Desk Chair with Adjustable Lumbar Support, Mesh Computer Chair, Executive Chairs for Home Office Comfortable Lumbar Support (White)", "asin": "/promo/A1NNL4PSNQ9VCZ", "price": "$139.99", "quantity": ""},
{"title": "SIHOO M18 Ergonomic Office Chair, Computer Desk Chair with Adjustable Headrest and Lumbar Support, High Back Executive Swivel Chair for Home Office (Dark Gray)", "asin": "B0CRRQ237S", "price": "$169.99", "quantity": ""},
{"title": "Amazon Basics Ergonomic Executive Office Desk Chair with Flip-up Armrests and Adjustable Height, Tilt and Lumbar Support, Cream Bonded Leather, 29.5\"D x 28\"W x 43\"H (Previously AmazonCommercial brand)", "asin": "B07V8ZMFDQ", "price": "$175.99", "quantity": ""}],
"comparison_items": [{"title": "SHW\u00a055 x 28 Inches Electric Height Adjustable Standing Desk with Drawer and Memory Preset, Maple", "asin": "B07Q3TGL7M", "price": "$209.97"},
{"title": "Monomi\u00a0Height Adjustable Electric Standing Desk, 55 x 24 Inches Stand up Desk, Sit Stand Home Office Computer Desk, Maple", "asin": "B0BQ65Y6GD", "price": "$129.99"},
{"title": "Furmax\u00a0Electric Height Adjustable Standing Desk Large 55 x 24 Inches Sit Stand Up Desk Home Office Computer Desk Memory Preset with T-Shaped Metal Bracket, Black", "asin": "B09W2HKC37", "price": "$104.99"},
{"title": "ErGear\u00a0Height Adjustable Electric Standing Desk, 55 x 28 Inches Sit Stand up Desk, Large Memory Computer Home Office Desk with Two-Piece Desktop (Black)", "asin": "B0B41Z34M7", "price": "$179.99"},
{"title": "TIQLAB\u00a0Height Adjustable Electric Standing Desk, 55 x 24 inch, Sit Stand Up Desk, Splice Board, Computer Home Office Desk, White Frame/Maple Top", "asin": "B0D4Z61QRG", "price": "$155.99"},
{"title": "Claiks\u00a0Electric Standing Desk, Adjustable Height Stand up Desk, 24x48 Inches Sit Stand Home Office Desk with Splice Board, Black Frame/Rustic Brown Top", "asin": "B0BZ7GXM4M", "price": "$109.99"}]
<|observation_end|>

# Output Format
Please provide your final answer in JSON format within <answer></answer> tags using the following schema (Note that the thinking process should be within 250 words and give enough output space for final answer):
"<answer>
{
"timestamp": "2025-05-01T22:21:42.990Z", // the timestamp when this action occurs.
"action": "string", // select one plausible action from: input, click_product, purchase, or click.
"acion_argument": "string", // select appropriate value based on action type: input_text, product_asin, clickable_name.
}
</answer>"

<|im_end|>
<|im_start|>assistant
<think>

<|im_start|>system
You are a helpful assistant that is capable of understanding and predicting customer shopping behaviors on Amazon. You first think about the reasoning process in the mind and then predict the customer actions and action argument. The reasoning process and the predicted action and action argument are enclosed within <think> </think> and <answer> </answer> tags, respectively, i.e., <think>reasoning process here</think><answer>predicted action and action argument here</answer>.
<|im_end|>
<|im_start|>user
You are given a customer behavior trajectory on Amazon. This trajectory include the customer long-term information (enclosed between <|memory_start|> and <|memory_end|>), previous actions the customer has taken with timestamps (enclosed between <|action_start|> and <|action_end|>), and current observations describing what the customer sees on Amazon (e.g., a search results page, a product detail page) (enclosed between <|observation_start|> and <|observation_end|>). 
Now your task is to predict the immediate next action and action argument (i.e., input_text, product_asin, or click_type) of this shopper by analyzing shopper shopping behaviors. The available action space and action argument space are provided between <|actionspace_start|> and <|actionspace_end|> to help guide your prediction. Please first analyze the customer's behavior patterns within the  <think> </think> section, then provide your prediction within the <answer> </answer> section, ensuring your prediction falls within the specified action and argument spaces. 

<|actionspace_start|>
Available actions are represented in JSON format. There are four primary action types with their corresponding action arguments:
1. input:
Action: Type text into an input field to search for a specific product. 
Action Argument: the input_text is the specific text entered by the customer.
{
"timestamp": "timestamp",
"action": "input",
"action_argument": "input_text",
}

2. click:
Action: Click on a UI interface button or clickable element on the Amazon website.
Action Argument: The clickable_name is one of the UI interface buttons or clickable elements including "review", "search", "product_option", "other", "nav_bar", "quantity", "page_related", "suggested_term", "cart_side_bar", "cart_page_select", and "filter". Select one of these buttons or clickable elements as action argument.
{
"timestamp": "timestamp",
"action": "click",
"action_argument": "clickable_name",
}

3. click_product:
Action: Click on product links or product images.
Action Argument: the Amazon Standard Identification Number (i.e., product_asin) of the clicked product.
{
"timestamp": "timestamp",
"action": "click_product",
"action_argument": "product_asin",
}

4. purchase:
Action: indicate intent to purchase by clicking on any purchase-related button. This includes clicking "Add to Cart", "Buy Now", "Set Subscription", or "Checkout" buttons for specific products. 
Action Argument: the Amazon Standard Identification Number (i.e., product_asin) of the product being purchased.
{
"timestamp": "timestamp",
"action": "purchase",
"action_argument": "product_asin",
}
<|actionspace_end|>

<|memory_start|>
<|memory_end|>

<|action_start|>
{"timestamp": "2025-05-01T22:14:48.857Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-05-01T22:14:51.502Z", "action": "input", "action_argument": "white tall self"}
{"timestamp": "2025-05-01T22:14:51.790Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-05-01T22:15:31.687Z", "action": "input", "action_argument": "white tall cabinet"}
{"timestamp": "2025-05-01T22:15:31.993Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-05-01T22:20:49.680Z", "action": "input", "action_argument": "standing desk"}
{"timestamp": "2025-05-01T22:20:49.905Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-05-01T22:21:13.821Z", "action": "click_product", "action_argument": "B07Q3TGL7M"}
<|action_end|>

<|observation_start|>
Your context will be the JSON string containing page metadata of the Amazon page you are looking at. This Amazon page is the context you observed after performing your last action.
"search_term": [{"term": "standing desk"}],
"cart_items": [{"title": "Belkin MagSafe-Compatible Charger, 2-in-1 Magnetic Foldable Charger 15W - Qi2-Certified Wireless Charging for Apple iPhone 16, Apple Watch, Samsung Galaxy S25 w/Non-Slip Base, PSU Included - White", "asin": "B0D9WZB84X", "price": "$59.99", "quantity": "1"},
{"title": "Belkin MagSafe 2-in-1 Wireless Charging Stand for Apple iPhone 16, iPhone 15, iPhone 14, & iPhone 13 Series & AirPods - MagSafe Fast Charging Station for Multiple Devices - White", "asin": "B091J6BY3C", "price": "$74.00", "quantity": "1"},
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{"title": "Aokpsrt Bunny Kids Night Light - Rechargeable Lamp for Kids Room, Nursery & Toddler| Cute Room Decor | Perfect Gifts for Teen s Girls, Christmas, Birthdays, Graduation", "asin": "B0CFF1539L", "price": "$9.99", "quantity": "1"}],
"product_details": [{"asin": "B07Q3TGL7M"},
{"title": "SHW 55 x 28 Inches Electric Height Adjustable Standing Desk with Drawer and Memory Preset, Maple"},
{"price": "$209.97"},
{"bullet_list": "Electric Height Adjustment \u2013 One-touch motorized lift ranges from 28\" to 45\", ideal for switching between sitting and standing 4 Memory Presets \u2013 Easily save and access your favorite height positions with the digital handset controller Spacious 55\" Desktop \u2013 Provides generous space for dual monitors, keyboard, laptop, and work essentials Built-In Storage Drawer \u2013 Integrated drawer keeps your desktop clutter-free and essential items close at hand Durable & Stable Frame \u2013 Heavy-duty steel legs and two-stage telescopic base ensure smooth motion and stability Measures: 55\"W x 28\"D x 28-45\"H Patent No: US D934,012 S"}],
"product_quantity": [{"quantity": "1"}],
"product_options": [{"Color": "Maple"},
{"Size": "55-Inch"}],
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{"title": "FLEXISPOT EN1 One Piece Standing Desk, 48 x 24 Inches Height Adjustable Desk Electric Stand up Desk Home Office Table for Computer Laptop (White Frame + Maple Desktop)", "asin": "B0CFV4N5TJ", "price": "$129.99", "quantity": ""},
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{"title": "BANTI 55x24 Inch Electric Standing Desk with Double Drawers, Adjustable Height Stand Up Desk, Sit Stand Home Office Desk with Storage Shelf, Light Rustic Brown Top", "asin": "B0DKFN7KVD", "price": "$169.99", "quantity": ""},
{"title": "HUANUO Electric Standing Desk, 48\" x 24\" Whole Piece Desktop, Adjustable Height Computer Desk, 4 Height Memory Settings, Sit Stand Up Desk for Home Office, White", "asin": "B0DCVMJY8Q", "price": "$109.99", "quantity": ""},
{"title": "TIQLAB Height Adjustable Electric Standing Desk, 47 x 24 inch, Sit Stand Up Desk, Splice Board, Computer Home Office Desk, White Frame/Maple Top", "asin": "B0D4YYY6ZR", "price": "$119.99", "quantity": ""},
{"title": "Claiks Electric Standing Desk, Adjustable Height Stand up Desk, 48x24 Inches Sit Stand Home Office Desk with Splice Board, White Frame/Nature Top", "asin": "B0BZ7GVKZF", "price": "$159.99", "quantity": ""},
{"title": "FLEXISPOT EN2 Whole-Piece Standing Desk with Clamp Power Strip, 48 x 24 Electric Stand Up Height Adjustable Desk with Cable Management (White Frame + 48\" Maple Top)", "asin": "B08BHN4ZSN", "price": "$159.98", "quantity": ""},
{"title": "FLEXISPOT EN2 Whole-Piece Standing Desk with Clamp Power Strip, 48 x 24 Electric Stand Up Height Adjustable Desk with Cable Management (White Frame + 48\" Maple Top)", "asin": "B08BHN4ZSN", "price": "$159.98", "quantity": ""},
{"title": "farexon Electric Standing Desk Adjustable Height, 55 x 24 Inch Stand up Desk with Large Mouse Pad, Rolling Wheels & Foot Pad,27''-46'' Lifting Range Home Office Computer Desk(Oak Gray)", "asin": "B09V7T6TY9", "price": "$149.50", "quantity": ""},
{"title": "Claiks Electric Standing Desk, Adjustable Height Stand up Desk, 55x24 Inches Sit Stand Home Office Desk with Splice Board, White Frame/Nature Top", "asin": "B0BZ7JYK91", "price": "$199.99", "quantity": ""},
{"title": "BANTI 48x24 Inch Electric Standing Desk with Double Drawers, Adjustable Height Stand Up Desk, Sit Stand Home Office Desk with Storage Shelf, Light Wood Top", "asin": "B0DKFNMS5V", "price": "$143.30", "quantity": ""},
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{"title": "FLEXISPOT EN1 One Piece Standing Desk, 48 x 24 Inches Height Adjustable Desk Electric Stand up Desk Home Office Table for Computer Laptop (White Frame + Maple Desktop)", "asin": "B0CFV4N5TJ", "price": "$129.99", "quantity": ""},
{"title": "TIQLAB Height Adjustable Electric Standing Desk, 47 x 24 inch, Sit Stand Up Desk, Splice Board, Computer Home Office Desk, White Frame/Maple Top", "asin": "B0D4YYY6ZR", "price": "$119.99", "quantity": ""},
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{"title": "balmstar Office Chair, Ergonomic High Back Comfy Desk Chairs and Flip-up Armrest Lumbar, Swivel Tilt Function Backrest Computer Chair,PU Rolling Wheels Capacity 350LBS (Khaki)", "asin": "/promo/A24HFAKC5UIWJS", "price": "$123.49", "quantity": ""},
{"title": "TEAMIX Large Dual Monitor Riser - Wood & Steel Desk Organization - Maple, 42 inch", "asin": "B0BGG94XCV", "price": "$45.99", "quantity": ""},
{"title": "TRALT Office Chair - Ergonomic Desk Chair with Adjustable Lumbar Support, Mesh Computer Chair, Executive Chairs for Home Office Comfortable Lumbar Support (White)", "asin": "/promo/A1NNL4PSNQ9VCZ", "price": "$139.99", "quantity": ""},
{"title": "SIHOO M18 Ergonomic Office Chair, Computer Desk Chair with Adjustable Headrest and Lumbar Support, High Back Executive Swivel Chair for Home Office (Dark Gray)", "asin": "B0CRRQ237S", "price": "$169.99", "quantity": ""},
{"title": "Amazon Basics Ergonomic Executive Office Desk Chair with Flip-up Armrests and Adjustable Height, Tilt and Lumbar Support, Cream Bonded Leather, 29.5\"D x 28\"W x 43\"H (Previously AmazonCommercial brand)", "asin": "B07V8ZMFDQ", "price": "$175.99", "quantity": ""}],
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{"title": "Monomi\u00a0Height Adjustable Electric Standing Desk, 55 x 24 Inches Stand up Desk, Sit Stand Home Office Computer Desk, Maple", "asin": "B0BQ65Y6GD", "price": "$129.99"},
{"title": "Furmax\u00a0Electric Height Adjustable Standing Desk Large 55 x 24 Inches Sit Stand Up Desk Home Office Computer Desk Memory Preset with T-Shaped Metal Bracket, Black", "asin": "B09W2HKC37", "price": "$104.99"},
{"title": "ErGear\u00a0Height Adjustable Electric Standing Desk, 55 x 28 Inches Sit Stand up Desk, Large Memory Computer Home Office Desk with Two-Piece Desktop (Black)", "asin": "B0B41Z34M7", "price": "$179.99"},
{"title": "TIQLAB\u00a0Height Adjustable Electric Standing Desk, 55 x 24 inch, Sit Stand Up Desk, Splice Board, Computer Home Office Desk, White Frame/Maple Top", "asin": "B0D4Z61QRG", "price": "$155.99"},
{"title": "Claiks\u00a0Electric Standing Desk, Adjustable Height Stand up Desk, 24x48 Inches Sit Stand Home Office Desk with Splice Board, Black Frame/Rustic Brown Top", "asin": "B0BZ7GXM4M", "price": "$109.99"}]
<|observation_end|>

# Output Format
Please provide your final answer in JSON format within <answer></answer> tags using the following schema (Note that the thinking process should be within 250 words and give enough output space for final answer):
"<answer>
{
"timestamp": "2025-05-01T22:21:42.990Z", // the timestamp when this action occurs.
"action": "string", // select one plausible action from: input, click_product, purchase, or click.
"acion_argument": "string", // select appropriate value based on action type: input_text, product_asin, clickable_name.
}
</answer>"

<|im_end|>
<|im_start|>assistant
<think>
