<|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|>
{"timestamp": "2025-04-10T21:34:38.098Z", "action": "input", "action_argument": "vita"}
{"timestamp": "2025-04-10T21:34:38.228Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-10T21:36:07.486Z", "action": "click_product", "action_argument": "B08FNG91XM"}
{"timestamp": "2025-04-10T21:36:21.008Z", "action": "purchase", "action_argument": "B08FNG91XM"}
{"timestamp": "2025-04-10T21:36:25.628Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-10T21:36:41.227Z", "action": "click_product", "action_argument": "B08FNG91XM"}
{"timestamp": "2025-04-10T21:36:50.282Z", "action": "click_product", "action_argument": "B0000DJASY"}
{"timestamp": "2025-04-10T21:36:58.021Z", "action": "purchase", "action_argument": "B0000DJASY"}
{"timestamp": "2025-04-10T21:38:58.749Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-10T21:39:08.792Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-10T21:41:39.367Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-18T23:28:27.888Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:29:04.531Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:29:19.463Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:31:03.986Z", "action": "click_product", "action_argument": "B07RWN8N9H"}
{"timestamp": "2025-04-18T23:31:25.177Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:31:26.214Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-04-18T23:33:14.977Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:33:25.888Z", "action": "click_product", "action_argument": "059373422X"}
{"timestamp": "2025-04-18T23:33:33.964Z", "action": "purchase", "action_argument": "059373422X"}
<|memory_end|>

<|action_start|>
{"timestamp": "2025-04-29T22:01:10.651Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-29T22:01:27.998Z", "action": "click_product", "action_argument": "B085V66GKY"}
{"timestamp": "2025-04-29T22:02:40.257Z", "action": "click", "action_argument": "nav_bar"}
<|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": ""}],
"promotion_items": [{"title": "Nature's Bounty Milk Thistle, Herbal Health Supplement, Supports Liver Health, 1000 mg, Rapid Release Softgels, 50 Ct", "asin": "B002QMB63A", "price": "$9.50", "quantity": ""},
{"title": "Nature Made CoQ10 200mg, Dietary Supplement for Heart Health Support, 80 Softgels, 80 Day Supply", "asin": "B004GJVD4I", "price": "$22.50", "quantity": ""},
{"title": "Nature Made Chewable L Theanine 200mg, L-Theanine Supplement for Stress Relief, 50 Chewable Tablets, 50 Day Supply", "asin": "B0BX7HP6FB", "price": "$16.99", "quantity": ""},
{"title": "Nature's Bounty 1000mg Berberine Herbal Health Capsules Support Heart and Cardiovascular Health, Help Maintain Healthy Cholesterol, Triglyceride, and Blood Sugar Levels, 60 Capsules", "asin": "B0CNQC2TWG", "price": "$19.77", "quantity": ""},
{"title": "Nature Made Extra Strength Turmeric Curcumin with Black Pepper, 1000mg extract (950mg Curcuminoids) per serving, Supports Healthy Inflammation Response, 60 Vegetarian Capsules, 30 Day Supply", "asin": "B0BX7FZGDJ", "price": "$29.99", "quantity": ""},
{"title": "Nature Made Magnesium Complex with Vitamin D and Zinc Supplements, Magnesium Supplement for Muscle, Nerve, Heart & Bone Support with Vitamin D3 & Zinc for Immune Support, 60 Capsules, 30 Day Supply", "asin": "B0BX7HSL2S", "price": "$19.99", "quantity": ""},
{"title": "Nature Made Turmeric Curcumin 500 mg, Herbal Supplement for Antioxidant Support, 120 Capsules, 120 Day Supply", "asin": "B074QHCL9Z", "price": "$18.98", "quantity": ""},
{"title": "Lions Mane Mushroom Cognition (120 Capsules) Lions Mane Mushroom Powder Extract Capsules | Brain Supplement, Brain Vitamins, Focus Supplement", "asin": "B078SZX3ML", "price": "$29.95", "quantity": ""},
{"title": "Nature's Bounty Fish Oil, Supports Heart Health, 1200 Mg, 360 Mg Omega-3, Rapid Release Softgels, 200 Ct", "asin": "B000NPYY04", "price": "$13.59", "quantity": ""},
{"title": "Aquaphor Healing Balm Stick, Skin Protectant with Avocado Oil and Shea Butter, 0.65 Oz Stick", "asin": "B09RYRCXKM", "price": "$10.47", "quantity": ""},
{"title": "Nature\u2019s Bounty Zinc 50mg, Immune Support & Antioxidant Supplement, Promotes Skin Health 250 Caplets", "asin": "B08YLTCDTN", "price": "$8.68", "quantity": ""},
{"title": "Futurebiotics Ashwagandha Extra Strength Stress & Mood Support with BioPerine - Non GMO Formula, 100 Vegetarian Capsules", "asin": "B0CQMHSPDV", "price": "$9.97", "quantity": ""},
{"title": "Nature's Bounty Zinc, Immune Support, 50 mg, Caplets, 100 Ct", "asin": "B000GCQ8X0", "price": "$3.47", "quantity": ""},
{"title": "PanOxyl Acne Treatment Bar with 10% Benzoyl Peroxide, Maximum Strength Bar Soap for Face, Chest and Back, Benzoyl Peroxide Soap Body Wash, Vegan, For Acne Prone Skin, 4 oz", "asin": "B09SQFPLC9", "price": "$9.47", "quantity": ""}],
"active_items": [{"title": "Cetaphil Body Wash, Acne Relief Body Wash with 2% Salicylic Acid to Eliminate Breakouts, Gently Exfoliates and Provides 24Hr Dryness Relief, 20 oz", "asin": "B09MVC5KGG", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": [{"Scent": "Unscented"}, {"Size": "20 Fl Oz (Pack of 1)"}]},
{"title": "PanOxyl Acne Foaming Wash Benzoyl Peroxide 10% Maximum Strength Antimicrobial, 5.5 Oz", "asin": "B081KL2QYJ", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": [{"Scent": "Unscented"}, {"Size": "5.5 Ounce (Pack of 1)"}]},
{"title": "Nature Made Ashwagandha Capsules 125mg for Stress Support, 60 Capsules, 60 Day Supply", "asin": "B085V66GKY", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM", "quantity": "2", "selected": false, "options": [{"Size": "60 Count (Pack of 1)"}]},
{"title": "AI Engineering: Building Applications with Foundation Models", "asin": "1098166302", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "LLM Engineer's Handbook: Master the art of engineering large language models from concept to production", "asin": "1836200072", "delivery": "Two-Day FREE delivery Thu, May 1 FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Build a Large Language Model (From Scratch)", "asin": "1633437167", "delivery": "One-Day FREE delivery Tomorrow 10\u202fAM - 3\u202fPM FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Butter: A Novel of Food and Murder", "asin": "0063236419", "delivery": "One-Day FREE delivery Tomorrow 10\u202fAM - 3\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Amazon Basics Rectangular Plastic Desk Organizer, Half Accessory Tray, 9.4\" x 3.3\" x 1\", Black", "asin": "B07S268HGD", "delivery": "One-Day FREE delivery Tomorrow 10\u202fAM - 3\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Nature's Bounty Magnesium, Bone and Muscle Health, Whole Body Support, Tablets, 500 Mg, 200 Ct", "asin": "B00H5PJ0HW", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM on $25 of qualifying items", "quantity": "1", "selected": false, "options": [{"Flavor Name": "Unflavored"}, {"Size": "200 Count (Pack of 1)"}]},
{"title": "The Global War on Tobacco: Mapping the World's First Public Health Treaty", "asin": "1421416832", "delivery": "$3.99 delivery May 7 - 14", "quantity": "1", "selected": false, "options": []},
{"title": "Allen Carr's Easy Way To Stop Smoking", "asin": "0615482155", "delivery": "One-Day FREE delivery Tomorrow 10\u202fAM - 3\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Go! More Than a Game: Revised Edition", "asin": "080483475X", "delivery": "One-Day FREE delivery Tomorrow, Apr 30 FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Killers of the Flower Moon: Adapted for Young Readers: The Osage Murders and the Birth of the FBI", "asin": "0593377370", "delivery": "FREE delivery Fri, May 2 FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "For Profit: A History of Corporations", "asin": "1541601572", "delivery": "One-Day FREE delivery Tomorrow, Apr 30 FREE Returns", "quantity": "1", "selected": false, "options": []}],
"saved_items": [{"title": "Ranong Tea Matcha Green Tea Latte Instant Drink Mix 8 Sachets", "asin": "B07RWN8N9H", "price": "$7.66", "options": [{"Size": "8 Count (Pack of 1)"}]},
{"title": "USHAKE Bike Combination U Lock, Heavy Duty Bike Combination U Lock Paddle Lock for Bicycle Electric Scooter Motorcycles Metal Fence Gate Anti Theft", "asin": "B074Z1PVZQ", "options": []},
{"asin": "B074Z1PVZQ", "options": []},
{"title": "NOCCO Zero Sugar Energy Drink, Variety Pack - 12 Fl Oz (12-Pack) - 180 mg Caffeine, Sugar-Free, BCAAs - Branched Chain Amino Acids, Carbonated, Low Calorie, B Vitamins, Grab & Go Performance Beverage", "asin": "B07Y1VYP75", "options": []},
{"title": "Asvel 7509 Rice Container Bin with Pour Spout Plastic Clear 2KG", "asin": "B00GQIM9KO", "options": [{"Pattern Name": "1pcs"}]},
{"title": "1 X Chinese Calligraphy Black Ink (yi de ge mo Zhi) 100G", "asin": "B0042IRDAQ", "options": []},
{"title": "Core Power Elite High Protein Shake, Chocolate, 42g Bottle, 14oz, 12 Pack", "asin": "B01DDIRDZA", "options": [{"Flavor Name": "Chocolate"}, {"Size": "14 Fl Oz (Pack of 12)"}]},
{"title": "Living proof Dry Shampoo, Perfect hair Day, Dry Shampoo for Women and Men, 5.5 oz", "asin": "B0170GOCVO", "options": [{"Size": "5.5 Ounce (Pack of 1)"}]},
{"title": "CLIF BAR - Crunchy Peanut Butter - Made with Organic Oats - 11g Protein - Non-GMO - Plant Based - Energy Bars - 2.4 oz. (18 Pack)", "asin": "B07CVDTFZ2", "options": []},
{"title": "Midea MERM17S1AST 1.7 Cu.ft Mini Fridge Compact Refrigerator, Cubic Feet, Silver", "asin": "B0CWV73784", "options": []},
{"title": "XTEND Sport BCAA Powder Blue Raspberry Ice - Electrolyte Powder for Recovery & Hydration with Amino Acids - 30 Servings", "asin": "B07BV6Y72J", "options": [{"Flavor Name": "Blue Raspberry Ice"}, {"Size": "30 Servings (Pack of 1)"}]}]
<|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": "2025-04-29T22:03:14.540Z", // 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|>
{"timestamp": "2025-04-10T21:34:38.098Z", "action": "input", "action_argument": "vita"}
{"timestamp": "2025-04-10T21:34:38.228Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-10T21:36:07.486Z", "action": "click_product", "action_argument": "B08FNG91XM"}
{"timestamp": "2025-04-10T21:36:21.008Z", "action": "purchase", "action_argument": "B08FNG91XM"}
{"timestamp": "2025-04-10T21:36:25.628Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-10T21:36:41.227Z", "action": "click_product", "action_argument": "B08FNG91XM"}
{"timestamp": "2025-04-10T21:36:50.282Z", "action": "click_product", "action_argument": "B0000DJASY"}
{"timestamp": "2025-04-10T21:36:58.021Z", "action": "purchase", "action_argument": "B0000DJASY"}
{"timestamp": "2025-04-10T21:38:58.749Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-10T21:39:08.792Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-10T21:41:39.367Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-18T23:28:27.888Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:29:04.531Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:29:19.463Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:31:03.986Z", "action": "click_product", "action_argument": "B07RWN8N9H"}
{"timestamp": "2025-04-18T23:31:25.177Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:31:26.214Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-04-18T23:33:14.977Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:33:25.888Z", "action": "click_product", "action_argument": "059373422X"}
{"timestamp": "2025-04-18T23:33:33.964Z", "action": "purchase", "action_argument": "059373422X"}
<|memory_end|>

<|action_start|>
{"timestamp": "2025-04-29T22:01:10.651Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-29T22:01:27.998Z", "action": "click_product", "action_argument": "B085V66GKY"}
{"timestamp": "2025-04-29T22:02:40.257Z", "action": "click", "action_argument": "nav_bar"}
<|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": ""}],
"promotion_items": [{"title": "Nature's Bounty Milk Thistle, Herbal Health Supplement, Supports Liver Health, 1000 mg, Rapid Release Softgels, 50 Ct", "asin": "B002QMB63A", "price": "$9.50", "quantity": ""},
{"title": "Nature Made CoQ10 200mg, Dietary Supplement for Heart Health Support, 80 Softgels, 80 Day Supply", "asin": "B004GJVD4I", "price": "$22.50", "quantity": ""},
{"title": "Nature Made Chewable L Theanine 200mg, L-Theanine Supplement for Stress Relief, 50 Chewable Tablets, 50 Day Supply", "asin": "B0BX7HP6FB", "price": "$16.99", "quantity": ""},
{"title": "Nature's Bounty 1000mg Berberine Herbal Health Capsules Support Heart and Cardiovascular Health, Help Maintain Healthy Cholesterol, Triglyceride, and Blood Sugar Levels, 60 Capsules", "asin": "B0CNQC2TWG", "price": "$19.77", "quantity": ""},
{"title": "Nature Made Extra Strength Turmeric Curcumin with Black Pepper, 1000mg extract (950mg Curcuminoids) per serving, Supports Healthy Inflammation Response, 60 Vegetarian Capsules, 30 Day Supply", "asin": "B0BX7FZGDJ", "price": "$29.99", "quantity": ""},
{"title": "Nature Made Magnesium Complex with Vitamin D and Zinc Supplements, Magnesium Supplement for Muscle, Nerve, Heart & Bone Support with Vitamin D3 & Zinc for Immune Support, 60 Capsules, 30 Day Supply", "asin": "B0BX7HSL2S", "price": "$19.99", "quantity": ""},
{"title": "Nature Made Turmeric Curcumin 500 mg, Herbal Supplement for Antioxidant Support, 120 Capsules, 120 Day Supply", "asin": "B074QHCL9Z", "price": "$18.98", "quantity": ""},
{"title": "Lions Mane Mushroom Cognition (120 Capsules) Lions Mane Mushroom Powder Extract Capsules | Brain Supplement, Brain Vitamins, Focus Supplement", "asin": "B078SZX3ML", "price": "$29.95", "quantity": ""},
{"title": "Nature's Bounty Fish Oil, Supports Heart Health, 1200 Mg, 360 Mg Omega-3, Rapid Release Softgels, 200 Ct", "asin": "B000NPYY04", "price": "$13.59", "quantity": ""},
{"title": "Aquaphor Healing Balm Stick, Skin Protectant with Avocado Oil and Shea Butter, 0.65 Oz Stick", "asin": "B09RYRCXKM", "price": "$10.47", "quantity": ""},
{"title": "Nature\u2019s Bounty Zinc 50mg, Immune Support & Antioxidant Supplement, Promotes Skin Health 250 Caplets", "asin": "B08YLTCDTN", "price": "$8.68", "quantity": ""},
{"title": "Futurebiotics Ashwagandha Extra Strength Stress & Mood Support with BioPerine - Non GMO Formula, 100 Vegetarian Capsules", "asin": "B0CQMHSPDV", "price": "$9.97", "quantity": ""},
{"title": "Nature's Bounty Zinc, Immune Support, 50 mg, Caplets, 100 Ct", "asin": "B000GCQ8X0", "price": "$3.47", "quantity": ""},
{"title": "PanOxyl Acne Treatment Bar with 10% Benzoyl Peroxide, Maximum Strength Bar Soap for Face, Chest and Back, Benzoyl Peroxide Soap Body Wash, Vegan, For Acne Prone Skin, 4 oz", "asin": "B09SQFPLC9", "price": "$9.47", "quantity": ""}],
"active_items": [{"title": "Cetaphil Body Wash, Acne Relief Body Wash with 2% Salicylic Acid to Eliminate Breakouts, Gently Exfoliates and Provides 24Hr Dryness Relief, 20 oz", "asin": "B09MVC5KGG", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": [{"Scent": "Unscented"}, {"Size": "20 Fl Oz (Pack of 1)"}]},
{"title": "PanOxyl Acne Foaming Wash Benzoyl Peroxide 10% Maximum Strength Antimicrobial, 5.5 Oz", "asin": "B081KL2QYJ", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": [{"Scent": "Unscented"}, {"Size": "5.5 Ounce (Pack of 1)"}]},
{"title": "Nature Made Ashwagandha Capsules 125mg for Stress Support, 60 Capsules, 60 Day Supply", "asin": "B085V66GKY", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM", "quantity": "2", "selected": false, "options": [{"Size": "60 Count (Pack of 1)"}]},
{"title": "AI Engineering: Building Applications with Foundation Models", "asin": "1098166302", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "LLM Engineer's Handbook: Master the art of engineering large language models from concept to production", "asin": "1836200072", "delivery": "Two-Day FREE delivery Thu, May 1 FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Build a Large Language Model (From Scratch)", "asin": "1633437167", "delivery": "One-Day FREE delivery Tomorrow 10\u202fAM - 3\u202fPM FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Butter: A Novel of Food and Murder", "asin": "0063236419", "delivery": "One-Day FREE delivery Tomorrow 10\u202fAM - 3\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Amazon Basics Rectangular Plastic Desk Organizer, Half Accessory Tray, 9.4\" x 3.3\" x 1\", Black", "asin": "B07S268HGD", "delivery": "One-Day FREE delivery Tomorrow 10\u202fAM - 3\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Nature's Bounty Magnesium, Bone and Muscle Health, Whole Body Support, Tablets, 500 Mg, 200 Ct", "asin": "B00H5PJ0HW", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM on $25 of qualifying items", "quantity": "1", "selected": false, "options": [{"Flavor Name": "Unflavored"}, {"Size": "200 Count (Pack of 1)"}]},
{"title": "The Global War on Tobacco: Mapping the World's First Public Health Treaty", "asin": "1421416832", "delivery": "$3.99 delivery May 7 - 14", "quantity": "1", "selected": false, "options": []},
{"title": "Allen Carr's Easy Way To Stop Smoking", "asin": "0615482155", "delivery": "One-Day FREE delivery Tomorrow 10\u202fAM - 3\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Go! More Than a Game: Revised Edition", "asin": "080483475X", "delivery": "One-Day FREE delivery Tomorrow, Apr 30 FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Killers of the Flower Moon: Adapted for Young Readers: The Osage Murders and the Birth of the FBI", "asin": "0593377370", "delivery": "FREE delivery Fri, May 2 FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "For Profit: A History of Corporations", "asin": "1541601572", "delivery": "One-Day FREE delivery Tomorrow, Apr 30 FREE Returns", "quantity": "1", "selected": false, "options": []}],
"saved_items": [{"title": "Ranong Tea Matcha Green Tea Latte Instant Drink Mix 8 Sachets", "asin": "B07RWN8N9H", "price": "$7.66", "options": [{"Size": "8 Count (Pack of 1)"}]},
{"title": "USHAKE Bike Combination U Lock, Heavy Duty Bike Combination U Lock Paddle Lock for Bicycle Electric Scooter Motorcycles Metal Fence Gate Anti Theft", "asin": "B074Z1PVZQ", "options": []},
{"asin": "B074Z1PVZQ", "options": []},
{"title": "NOCCO Zero Sugar Energy Drink, Variety Pack - 12 Fl Oz (12-Pack) - 180 mg Caffeine, Sugar-Free, BCAAs - Branched Chain Amino Acids, Carbonated, Low Calorie, B Vitamins, Grab & Go Performance Beverage", "asin": "B07Y1VYP75", "options": []},
{"title": "Asvel 7509 Rice Container Bin with Pour Spout Plastic Clear 2KG", "asin": "B00GQIM9KO", "options": [{"Pattern Name": "1pcs"}]},
{"title": "1 X Chinese Calligraphy Black Ink (yi de ge mo Zhi) 100G", "asin": "B0042IRDAQ", "options": []},
{"title": "Core Power Elite High Protein Shake, Chocolate, 42g Bottle, 14oz, 12 Pack", "asin": "B01DDIRDZA", "options": [{"Flavor Name": "Chocolate"}, {"Size": "14 Fl Oz (Pack of 12)"}]},
{"title": "Living proof Dry Shampoo, Perfect hair Day, Dry Shampoo for Women and Men, 5.5 oz", "asin": "B0170GOCVO", "options": [{"Size": "5.5 Ounce (Pack of 1)"}]},
{"title": "CLIF BAR - Crunchy Peanut Butter - Made with Organic Oats - 11g Protein - Non-GMO - Plant Based - Energy Bars - 2.4 oz. (18 Pack)", "asin": "B07CVDTFZ2", "options": []},
{"title": "Midea MERM17S1AST 1.7 Cu.ft Mini Fridge Compact Refrigerator, Cubic Feet, Silver", "asin": "B0CWV73784", "options": []},
{"title": "XTEND Sport BCAA Powder Blue Raspberry Ice - Electrolyte Powder for Recovery & Hydration with Amino Acids - 30 Servings", "asin": "B07BV6Y72J", "options": [{"Flavor Name": "Blue Raspberry Ice"}, {"Size": "30 Servings (Pack of 1)"}]}]
<|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": "2025-04-29T22:03:14.540Z", // 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>

<answer>{"timestamp": "2025-04-29T22:03:14.540Z","action": "click","acion_argument": "cart_page_select",}</answer>
rule
<answer>{"timestamp": "2025-04-29T22:03:14.540Z","action": "click","acion_argument": "cart_page_select",}</answer>
<|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|>
{"timestamp": "2025-04-10T21:34:38.098Z", "action": "input", "action_argument": "vita"}
{"timestamp": "2025-04-10T21:34:38.228Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-10T21:36:07.486Z", "action": "click_product", "action_argument": "B08FNG91XM"}
{"timestamp": "2025-04-10T21:36:21.008Z", "action": "purchase", "action_argument": "B08FNG91XM"}
{"timestamp": "2025-04-10T21:36:25.628Z", "action": "click", "action_argument": "review"}
{"timestamp": "2025-04-10T21:36:41.227Z", "action": "click_product", "action_argument": "B08FNG91XM"}
{"timestamp": "2025-04-10T21:36:50.282Z", "action": "click_product", "action_argument": "B0000DJASY"}
{"timestamp": "2025-04-10T21:36:58.021Z", "action": "purchase", "action_argument": "B0000DJASY"}
{"timestamp": "2025-04-10T21:38:58.749Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-10T21:39:08.792Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-10T21:41:39.367Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-18T23:28:27.888Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:29:04.531Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:29:19.463Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:31:03.986Z", "action": "click_product", "action_argument": "B07RWN8N9H"}
{"timestamp": "2025-04-18T23:31:25.177Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:31:26.214Z", "action": "click", "action_argument": "search"}
{"timestamp": "2025-04-18T23:33:14.977Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-18T23:33:25.888Z", "action": "click_product", "action_argument": "059373422X"}
{"timestamp": "2025-04-18T23:33:33.964Z", "action": "purchase", "action_argument": "059373422X"}
<|memory_end|>

<|action_start|>
{"timestamp": "2025-04-29T22:01:10.651Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-29T22:01:27.998Z", "action": "click_product", "action_argument": "B085V66GKY"}
{"timestamp": "2025-04-29T22:02:40.257Z", "action": "click", "action_argument": "nav_bar"}
<|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": ""}],
"promotion_items": [{"title": "Nature's Bounty Milk Thistle, Herbal Health Supplement, Supports Liver Health, 1000 mg, Rapid Release Softgels, 50 Ct", "asin": "B002QMB63A", "price": "$9.50", "quantity": ""},
{"title": "Nature Made CoQ10 200mg, Dietary Supplement for Heart Health Support, 80 Softgels, 80 Day Supply", "asin": "B004GJVD4I", "price": "$22.50", "quantity": ""},
{"title": "Nature Made Chewable L Theanine 200mg, L-Theanine Supplement for Stress Relief, 50 Chewable Tablets, 50 Day Supply", "asin": "B0BX7HP6FB", "price": "$16.99", "quantity": ""},
{"title": "Nature's Bounty 1000mg Berberine Herbal Health Capsules Support Heart and Cardiovascular Health, Help Maintain Healthy Cholesterol, Triglyceride, and Blood Sugar Levels, 60 Capsules", "asin": "B0CNQC2TWG", "price": "$19.77", "quantity": ""},
{"title": "Nature Made Extra Strength Turmeric Curcumin with Black Pepper, 1000mg extract (950mg Curcuminoids) per serving, Supports Healthy Inflammation Response, 60 Vegetarian Capsules, 30 Day Supply", "asin": "B0BX7FZGDJ", "price": "$29.99", "quantity": ""},
{"title": "Nature Made Magnesium Complex with Vitamin D and Zinc Supplements, Magnesium Supplement for Muscle, Nerve, Heart & Bone Support with Vitamin D3 & Zinc for Immune Support, 60 Capsules, 30 Day Supply", "asin": "B0BX7HSL2S", "price": "$19.99", "quantity": ""},
{"title": "Nature Made Turmeric Curcumin 500 mg, Herbal Supplement for Antioxidant Support, 120 Capsules, 120 Day Supply", "asin": "B074QHCL9Z", "price": "$18.98", "quantity": ""},
{"title": "Lions Mane Mushroom Cognition (120 Capsules) Lions Mane Mushroom Powder Extract Capsules | Brain Supplement, Brain Vitamins, Focus Supplement", "asin": "B078SZX3ML", "price": "$29.95", "quantity": ""},
{"title": "Nature's Bounty Fish Oil, Supports Heart Health, 1200 Mg, 360 Mg Omega-3, Rapid Release Softgels, 200 Ct", "asin": "B000NPYY04", "price": "$13.59", "quantity": ""},
{"title": "Aquaphor Healing Balm Stick, Skin Protectant with Avocado Oil and Shea Butter, 0.65 Oz Stick", "asin": "B09RYRCXKM", "price": "$10.47", "quantity": ""},
{"title": "Nature\u2019s Bounty Zinc 50mg, Immune Support & Antioxidant Supplement, Promotes Skin Health 250 Caplets", "asin": "B08YLTCDTN", "price": "$8.68", "quantity": ""},
{"title": "Futurebiotics Ashwagandha Extra Strength Stress & Mood Support with BioPerine - Non GMO Formula, 100 Vegetarian Capsules", "asin": "B0CQMHSPDV", "price": "$9.97", "quantity": ""},
{"title": "Nature's Bounty Zinc, Immune Support, 50 mg, Caplets, 100 Ct", "asin": "B000GCQ8X0", "price": "$3.47", "quantity": ""},
{"title": "PanOxyl Acne Treatment Bar with 10% Benzoyl Peroxide, Maximum Strength Bar Soap for Face, Chest and Back, Benzoyl Peroxide Soap Body Wash, Vegan, For Acne Prone Skin, 4 oz", "asin": "B09SQFPLC9", "price": "$9.47", "quantity": ""}],
"active_items": [{"title": "Cetaphil Body Wash, Acne Relief Body Wash with 2% Salicylic Acid to Eliminate Breakouts, Gently Exfoliates and Provides 24Hr Dryness Relief, 20 oz", "asin": "B09MVC5KGG", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": [{"Scent": "Unscented"}, {"Size": "20 Fl Oz (Pack of 1)"}]},
{"title": "PanOxyl Acne Foaming Wash Benzoyl Peroxide 10% Maximum Strength Antimicrobial, 5.5 Oz", "asin": "B081KL2QYJ", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": [{"Scent": "Unscented"}, {"Size": "5.5 Ounce (Pack of 1)"}]},
{"title": "Nature Made Ashwagandha Capsules 125mg for Stress Support, 60 Capsules, 60 Day Supply", "asin": "B085V66GKY", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM", "quantity": "2", "selected": false, "options": [{"Size": "60 Count (Pack of 1)"}]},
{"title": "AI Engineering: Building Applications with Foundation Models", "asin": "1098166302", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "LLM Engineer's Handbook: Master the art of engineering large language models from concept to production", "asin": "1836200072", "delivery": "Two-Day FREE delivery Thu, May 1 FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Build a Large Language Model (From Scratch)", "asin": "1633437167", "delivery": "One-Day FREE delivery Tomorrow 10\u202fAM - 3\u202fPM FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Butter: A Novel of Food and Murder", "asin": "0063236419", "delivery": "One-Day FREE delivery Tomorrow 10\u202fAM - 3\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Amazon Basics Rectangular Plastic Desk Organizer, Half Accessory Tray, 9.4\" x 3.3\" x 1\", Black", "asin": "B07S268HGD", "delivery": "One-Day FREE delivery Tomorrow 10\u202fAM - 3\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Nature's Bounty Magnesium, Bone and Muscle Health, Whole Body Support, Tablets, 500 Mg, 200 Ct", "asin": "B00H5PJ0HW", "delivery": "Same-Day FREE delivery Today 5\u202fPM - 10\u202fPM on $25 of qualifying items", "quantity": "1", "selected": false, "options": [{"Flavor Name": "Unflavored"}, {"Size": "200 Count (Pack of 1)"}]},
{"title": "The Global War on Tobacco: Mapping the World's First Public Health Treaty", "asin": "1421416832", "delivery": "$3.99 delivery May 7 - 14", "quantity": "1", "selected": false, "options": []},
{"title": "Allen Carr's Easy Way To Stop Smoking", "asin": "0615482155", "delivery": "One-Day FREE delivery Tomorrow 10\u202fAM - 3\u202fPM on $25 of qualifying items FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Go! More Than a Game: Revised Edition", "asin": "080483475X", "delivery": "One-Day FREE delivery Tomorrow, Apr 30 FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "Killers of the Flower Moon: Adapted for Young Readers: The Osage Murders and the Birth of the FBI", "asin": "0593377370", "delivery": "FREE delivery Fri, May 2 FREE Returns", "quantity": "1", "selected": false, "options": []},
{"title": "For Profit: A History of Corporations", "asin": "1541601572", "delivery": "One-Day FREE delivery Tomorrow, Apr 30 FREE Returns", "quantity": "1", "selected": false, "options": []}],
"saved_items": [{"title": "Ranong Tea Matcha Green Tea Latte Instant Drink Mix 8 Sachets", "asin": "B07RWN8N9H", "price": "$7.66", "options": [{"Size": "8 Count (Pack of 1)"}]},
{"title": "USHAKE Bike Combination U Lock, Heavy Duty Bike Combination U Lock Paddle Lock for Bicycle Electric Scooter Motorcycles Metal Fence Gate Anti Theft", "asin": "B074Z1PVZQ", "options": []},
{"asin": "B074Z1PVZQ", "options": []},
{"title": "NOCCO Zero Sugar Energy Drink, Variety Pack - 12 Fl Oz (12-Pack) - 180 mg Caffeine, Sugar-Free, BCAAs - Branched Chain Amino Acids, Carbonated, Low Calorie, B Vitamins, Grab & Go Performance Beverage", "asin": "B07Y1VYP75", "options": []},
{"title": "Asvel 7509 Rice Container Bin with Pour Spout Plastic Clear 2KG", "asin": "B00GQIM9KO", "options": [{"Pattern Name": "1pcs"}]},
{"title": "1 X Chinese Calligraphy Black Ink (yi de ge mo Zhi) 100G", "asin": "B0042IRDAQ", "options": []},
{"title": "Core Power Elite High Protein Shake, Chocolate, 42g Bottle, 14oz, 12 Pack", "asin": "B01DDIRDZA", "options": [{"Flavor Name": "Chocolate"}, {"Size": "14 Fl Oz (Pack of 12)"}]},
{"title": "Living proof Dry Shampoo, Perfect hair Day, Dry Shampoo for Women and Men, 5.5 oz", "asin": "B0170GOCVO", "options": [{"Size": "5.5 Ounce (Pack of 1)"}]},
{"title": "CLIF BAR - Crunchy Peanut Butter - Made with Organic Oats - 11g Protein - Non-GMO - Plant Based - Energy Bars - 2.4 oz. (18 Pack)", "asin": "B07CVDTFZ2", "options": []},
{"title": "Midea MERM17S1AST 1.7 Cu.ft Mini Fridge Compact Refrigerator, Cubic Feet, Silver", "asin": "B0CWV73784", "options": []},
{"title": "XTEND Sport BCAA Powder Blue Raspberry Ice - Electrolyte Powder for Recovery & Hydration with Amino Acids - 30 Servings", "asin": "B07BV6Y72J", "options": [{"Flavor Name": "Blue Raspberry Ice"}, {"Size": "30 Servings (Pack of 1)"}]}]
<|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": "2025-04-29T22:03:14.540Z", // 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>

train