<|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": "2025-04-16T17:31:13.241Z", "action": "input", "action_argument": "hhkb"}
{"timestamp": "2025-04-16T17:31:14.407Z", "action": "click", "action_argument": "search"}
<|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": "hhkb"}],
"promotion_items": [{"title": "nuphy Air75 V2 Portable 75% Mechanical Keyboard,Wireless Keyboard,Supports Bluetooth/2.4G/USB-C RGB Gaming Keyboards,Compatible with Windows/Mac OS/Linux Systems Grey-Gateron Brown Switch ", "asin": "B0CMZRBGMG", "price": "$139.99", "quantity": ""},
{"title": "Womier Retro 75% Gaming Keyboard with OLED Display&Knob, M87 Pro Bluetooth 5.1/2.4GHz /USB-C Wireless Mechanical Keyboard with Hot-Swappable Custom Switch, Compact Gamer RGB Keyboard-Grey ", "asin": "B0C9THQ36P", "price": "$72.99", "quantity": ""},
{"title": "LOFREE Flow84 Low Profile Mechanical Keyboard, 75 Percent Rechargeable Wireless Keyboards with Bluetooth and Wired Connection for Windows, Mac OS/Black Phantom Tactile Switches ", "asin": "B0CJTTX3JH", "price": "$169.99", "quantity": ""},
{"title": "Keychron K3 Version 2, 84 Keys Ultra-Slim Wireless Bluetooth/USB Wired Mechanical Keyboard with White LED Backlit, Low-Profile Gateron Mechanical Brown Switch Compatible with Mac Windows ", "asin": "B08LSJ4RHH", "price": "$62.99", "quantity": ""},
{"title": "nuphy Air96 V2 Wireless Mechanical Keyboard,100 Keys Gaming Keyboard,Supports Bluetooth 5.1,2.4G and Wired Connection,for PC/Laptop/Windows/Mac -Grey Gateron Moss Switch ", "asin": "B0CRKR24FC", "price": "$158.05", "quantity": ""},
{"title": "LOFREE Flow84 Low Profile Mechanical Keyboard, 75 Percent Rechargeable Wireless Keyboards with Bluetooth and Wired Connection for Windows, Mac OS/Black Phantom Tactile Switches ", "asin": "B0CJTTX3JH", "price": "$169.99", "quantity": ""},
{"title": "ProtoArc Foldable Keyboard and Mouse, XKM01 True Full-Size Folding Keyboard Mouse Combo for Business and Travel, 2.4G+Dual Bluetooth Portable Mouse Keyboard for Laptop iPads Tablets - Black ", "asin": "B0CM3CYQ4J", "price": "$66.37", "quantity": ""},
{"title": "nuphy Air75 V2 Portable 75% Mechanical Keyboard,Wireless Keyboard,Supports Bluetooth/2.4G/USB-C RGB Gaming Keyboards,Compatible with Windows/Mac OS/Linux Systems Grey-Gateron Brown Switch ", "asin": "B0CMZRBGMG", "price": "$139.99", "quantity": ""},
{"title": "nuphy Air96 V2 Wireless Mechanical Keyboard,100 Keys Gaming Keyboard,Supports Bluetooth 5.1,2.4G and Wired Connection,for PC/Laptop/Windows/Mac -Grey Gateron Moss Switch ", "asin": "B0CRKR24FC", "price": "$158.05", "quantity": ""},
{"title": "WOBKEY Rainy 75 CNC Aluminum HMX/JWK/Cocoa Switches Triple-Mode Connectivity Mechanical Keyboard with Superior Acoustics, RGB/PP/Mirrored Glass/3500mAh/Violet Switch (Standard - White) ", "asin": "B0CS65JXNM", "price": "$139.00", "quantity": ""}],
"ads": [{"title": "LOFREE Edge Low Profile Mechanical Keyboard, 75% Rechargeable Bluetooth and Wired Connection for Window, Mac OS/POM Switches 2.0, Carbon Fiber Top Case, Mg Alloy Bottom Case (Volcano Grey)", "asin": "B0D8KHS7LF"},
{"title": "LOFREE Edge Low Profile Mechanical Keyboard, 75% Rechargeable Bluetooth and Wired Connection for Window, Mac OS/POM Switches 2.0, Carbon Fiber Top Case, Mg Alloy Bottom Case (Metallic Silver)", "asin": "B0D8KL2CD4"}],
"search_results": [{"title": "nuphy Air75 V2 Portable 75% Mechanical Keyboard,Wireless Keyboard,Supports Bluetooth/2.4G/USB-C RGB Gaming Keyboards,Compatible with Windows/Mac OS/Linux Systems Grey-Gateron Brown Switch", "asin": "B0CMZRBGMG", "price": "$139.99", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "},
{"title": "HHKB - Happy Hacking Keyboard Professional Hybrid Type-S (Wireless, Bluetooth, Wired, USB, Silent, Mac, Windows, White, Blank) with 2 Year Advance Exchange Warranty", "asin": "B083NFY5P1", "price": "$262.06", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB - Happy Hacking Keyboard Professional Classic (Wired, USB-C, Mac, Windows, White, Printed) with 2 Year Advance Exchange Warranty", "asin": "B083MW6QVX", "price": "$206.29", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB - Happy Hacking Keyboard Professional Hybrid (Wireless, Bluetooth, Wired, USB, Mac, Windows, Charcoal, Printed) with 2 Year Advance Exchange Warranty", "asin": "B083N35WNL", "price": "$235.16", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB - Happy Hacking Keyboard Studio (Wireless, Bluetooth, Wired, USB, Silent, Mac, Windows, Charcoal, Printed)", "asin": "B0CKG1JN7L", "price": "$300.03", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB - Happy Hacking Keyboard Lid (CG01000-299001)", "asin": "B084DWG77B", "price": "$26.55", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "LOFREE Touch PBT Wireless Mouse with USB Receiver, Bluetooth, Wired Connection, Rechargeable, 4000 DPI with OLED Screen Compatible with Glass Surface for Mac Windows PC Notebook/Block Retro Grey", "asin": "B0CT9VX5ZM", "price": "$69.99", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "},
{"title": "HHKB PFU Professional Hybrid Type-S PD-KB800BS", "asin": "B082TYNNL2", "price": "$298.90", "delivery": " Two-Day FREE delivery Fri, Apr 18"},
{"title": "PFU HHKB Professional Hybrid Type-S White PD-KB800WS", "asin": "B082TQK2SB", "price": "$298.00", "delivery": " Two-Day FREE delivery Fri, Apr 18 Only 16 left in stock - order soon."},
{"title": "Logitech MX Keys Mini Minimalist Wireless Illuminated Keyboard, Compact, Bluetooth, Backlit, USB-C, Compatible with Apple macOS, iOS, Windows, Linux, Android, Metal Build - Graphite", "asin": "B098JPSVKY", "price": "$99.18", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "PFU HHKB Professional Series Key Top Set, White, Non-Engraved, 60 Keys, USB, Touch Typing Aid", "asin": "B00FQ5FZNQ", "price": "$71.00", "delivery": " Two-Day FREE delivery Fri, Apr 18 Only 12 left in stock - order soon."},
{"title": "ProtoArc Foldable Keyboard and Mouse, XKM01 True Full-Size Folding Keyboard Mouse Combo for Business and Travel, 2.4G+Dual Bluetooth Portable Mouse Keyboard for Laptop iPads Tablets - Black", "asin": "B0CM3CYQ4J", "price": "$66.37", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "},
{"title": "Carrying Case for Happy Hacking Keyboard PD-KB01SD [Japan Import]", "asin": "B000FHSNFW", "price": "$59.00", "delivery": " Two-Day FREE delivery Fri, Apr 18 Only 10 left in stock - order soon."},
{"title": "CHERRY G80 TouchBoard, Light Grey - 104 Keys, G80-11900LUMEU-0", "asin": "B000FOIJS6", "price": "$116.35", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "PFU HHKB Professional Hybrid PD-KB800B", "asin": "B082TXR61K", "price": "$266.62", "delivery": " Two-Day FREE delivery Fri, Apr 18 Only 9 left in stock - order soon."},
{"title": "HHKB PFU Professional Hybrid White PD-KB800W", "asin": "B082TT132L", "price": "$290.26", "delivery": "FREE delivery Apr 24 - 29"},
{"title": "LOFREE Flow84 Low Profile Mechanical Keyboard, 75 Percent Rechargeable Wireless Keyboards with Bluetooth and Wired Connection for Windows, Mac OS/Black Phantom Tactile Switches", "asin": "B0CJTTX3JH", "price": "$169.99", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "},
{"title": "EPOMAKER x Aula F75 Gasket Mechanical Keyboard, 75% Wireless Hot Swappable Gaming Keyboard with Five-Layer Padding&Knob, Bluetooth/2.4GHz/USB-C, RGB (Light Blue, LEOBOG Reaper Switch)", "asin": "B0CNT61VMZ", "price": "$67.99", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB- Happy Hacking Keyboard Wrist Rest (Red) (CG80000-270801)", "asin": "B0832F69TM", "price": "$55.00", "delivery": "FREE delivery Apr 22 - 24 Or fastest delivery Apr 18 - 22 Only 4 left in stock - order soon."},
{"title": "Keychron K2 Version 2 Wireless Gaming Mechanical Keyboard, Bluetooth/USB Wired Compact 84 Keys RGB LED Backlit N-Key Rollover Aluminum Frame for Mac Windows, Gateron G Pro Brown Switch", "asin": "B07YB32H52", "price": "$99.99", "delivery": "FREE delivery Sat, Apr 19 Only 3 left in stock - order soon."},
{"title": "FLYBOYS Regular Pubs Bag - Expanded Capacity Shoulder Bag - For Professional Pilots, General Aviation - 7.5 in X 10 in - Olive Green", "asin": "B099V1FTLX", "price": "$29.95", "delivery": "FREE delivery Apr 21 - 23 "},
{"title": "JALL 16\" Large Digital Wall Clock Timer, Remote Controll, 2 Alarms, LED Display, 8 RGB Color, Auto DST, Temperature for Living Room, Bedroom, Desk, Mounted, Gift for Elderly (White Orange, 16 inches)", "asin": "B0DCVV8J98", "price": "$32.99", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "}]
<|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": "2025-04-16T17:31:33.854Z", // 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": "2025-04-16T17:31:13.241Z", "action": "input", "action_argument": "hhkb"}
{"timestamp": "2025-04-16T17:31:14.407Z", "action": "click", "action_argument": "search"}
<|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": "hhkb"}],
"promotion_items": [{"title": "nuphy Air75 V2 Portable 75% Mechanical Keyboard,Wireless Keyboard,Supports Bluetooth/2.4G/USB-C RGB Gaming Keyboards,Compatible with Windows/Mac OS/Linux Systems Grey-Gateron Brown Switch ", "asin": "B0CMZRBGMG", "price": "$139.99", "quantity": ""},
{"title": "Womier Retro 75% Gaming Keyboard with OLED Display&Knob, M87 Pro Bluetooth 5.1/2.4GHz /USB-C Wireless Mechanical Keyboard with Hot-Swappable Custom Switch, Compact Gamer RGB Keyboard-Grey ", "asin": "B0C9THQ36P", "price": "$72.99", "quantity": ""},
{"title": "LOFREE Flow84 Low Profile Mechanical Keyboard, 75 Percent Rechargeable Wireless Keyboards with Bluetooth and Wired Connection for Windows, Mac OS/Black Phantom Tactile Switches ", "asin": "B0CJTTX3JH", "price": "$169.99", "quantity": ""},
{"title": "Keychron K3 Version 2, 84 Keys Ultra-Slim Wireless Bluetooth/USB Wired Mechanical Keyboard with White LED Backlit, Low-Profile Gateron Mechanical Brown Switch Compatible with Mac Windows ", "asin": "B08LSJ4RHH", "price": "$62.99", "quantity": ""},
{"title": "nuphy Air96 V2 Wireless Mechanical Keyboard,100 Keys Gaming Keyboard,Supports Bluetooth 5.1,2.4G and Wired Connection,for PC/Laptop/Windows/Mac -Grey Gateron Moss Switch ", "asin": "B0CRKR24FC", "price": "$158.05", "quantity": ""},
{"title": "LOFREE Flow84 Low Profile Mechanical Keyboard, 75 Percent Rechargeable Wireless Keyboards with Bluetooth and Wired Connection for Windows, Mac OS/Black Phantom Tactile Switches ", "asin": "B0CJTTX3JH", "price": "$169.99", "quantity": ""},
{"title": "ProtoArc Foldable Keyboard and Mouse, XKM01 True Full-Size Folding Keyboard Mouse Combo for Business and Travel, 2.4G+Dual Bluetooth Portable Mouse Keyboard for Laptop iPads Tablets - Black ", "asin": "B0CM3CYQ4J", "price": "$66.37", "quantity": ""},
{"title": "nuphy Air75 V2 Portable 75% Mechanical Keyboard,Wireless Keyboard,Supports Bluetooth/2.4G/USB-C RGB Gaming Keyboards,Compatible with Windows/Mac OS/Linux Systems Grey-Gateron Brown Switch ", "asin": "B0CMZRBGMG", "price": "$139.99", "quantity": ""},
{"title": "nuphy Air96 V2 Wireless Mechanical Keyboard,100 Keys Gaming Keyboard,Supports Bluetooth 5.1,2.4G and Wired Connection,for PC/Laptop/Windows/Mac -Grey Gateron Moss Switch ", "asin": "B0CRKR24FC", "price": "$158.05", "quantity": ""},
{"title": "WOBKEY Rainy 75 CNC Aluminum HMX/JWK/Cocoa Switches Triple-Mode Connectivity Mechanical Keyboard with Superior Acoustics, RGB/PP/Mirrored Glass/3500mAh/Violet Switch (Standard - White) ", "asin": "B0CS65JXNM", "price": "$139.00", "quantity": ""}],
"ads": [{"title": "LOFREE Edge Low Profile Mechanical Keyboard, 75% Rechargeable Bluetooth and Wired Connection for Window, Mac OS/POM Switches 2.0, Carbon Fiber Top Case, Mg Alloy Bottom Case (Volcano Grey)", "asin": "B0D8KHS7LF"},
{"title": "LOFREE Edge Low Profile Mechanical Keyboard, 75% Rechargeable Bluetooth and Wired Connection for Window, Mac OS/POM Switches 2.0, Carbon Fiber Top Case, Mg Alloy Bottom Case (Metallic Silver)", "asin": "B0D8KL2CD4"}],
"search_results": [{"title": "nuphy Air75 V2 Portable 75% Mechanical Keyboard,Wireless Keyboard,Supports Bluetooth/2.4G/USB-C RGB Gaming Keyboards,Compatible with Windows/Mac OS/Linux Systems Grey-Gateron Brown Switch", "asin": "B0CMZRBGMG", "price": "$139.99", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "},
{"title": "HHKB - Happy Hacking Keyboard Professional Hybrid Type-S (Wireless, Bluetooth, Wired, USB, Silent, Mac, Windows, White, Blank) with 2 Year Advance Exchange Warranty", "asin": "B083NFY5P1", "price": "$262.06", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB - Happy Hacking Keyboard Professional Classic (Wired, USB-C, Mac, Windows, White, Printed) with 2 Year Advance Exchange Warranty", "asin": "B083MW6QVX", "price": "$206.29", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB - Happy Hacking Keyboard Professional Hybrid (Wireless, Bluetooth, Wired, USB, Mac, Windows, Charcoal, Printed) with 2 Year Advance Exchange Warranty", "asin": "B083N35WNL", "price": "$235.16", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB - Happy Hacking Keyboard Studio (Wireless, Bluetooth, Wired, USB, Silent, Mac, Windows, Charcoal, Printed)", "asin": "B0CKG1JN7L", "price": "$300.03", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB - Happy Hacking Keyboard Lid (CG01000-299001)", "asin": "B084DWG77B", "price": "$26.55", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "LOFREE Touch PBT Wireless Mouse with USB Receiver, Bluetooth, Wired Connection, Rechargeable, 4000 DPI with OLED Screen Compatible with Glass Surface for Mac Windows PC Notebook/Block Retro Grey", "asin": "B0CT9VX5ZM", "price": "$69.99", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "},
{"title": "HHKB PFU Professional Hybrid Type-S PD-KB800BS", "asin": "B082TYNNL2", "price": "$298.90", "delivery": " Two-Day FREE delivery Fri, Apr 18"},
{"title": "PFU HHKB Professional Hybrid Type-S White PD-KB800WS", "asin": "B082TQK2SB", "price": "$298.00", "delivery": " Two-Day FREE delivery Fri, Apr 18 Only 16 left in stock - order soon."},
{"title": "Logitech MX Keys Mini Minimalist Wireless Illuminated Keyboard, Compact, Bluetooth, Backlit, USB-C, Compatible with Apple macOS, iOS, Windows, Linux, Android, Metal Build - Graphite", "asin": "B098JPSVKY", "price": "$99.18", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "PFU HHKB Professional Series Key Top Set, White, Non-Engraved, 60 Keys, USB, Touch Typing Aid", "asin": "B00FQ5FZNQ", "price": "$71.00", "delivery": " Two-Day FREE delivery Fri, Apr 18 Only 12 left in stock - order soon."},
{"title": "ProtoArc Foldable Keyboard and Mouse, XKM01 True Full-Size Folding Keyboard Mouse Combo for Business and Travel, 2.4G+Dual Bluetooth Portable Mouse Keyboard for Laptop iPads Tablets - Black", "asin": "B0CM3CYQ4J", "price": "$66.37", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "},
{"title": "Carrying Case for Happy Hacking Keyboard PD-KB01SD [Japan Import]", "asin": "B000FHSNFW", "price": "$59.00", "delivery": " Two-Day FREE delivery Fri, Apr 18 Only 10 left in stock - order soon."},
{"title": "CHERRY G80 TouchBoard, Light Grey - 104 Keys, G80-11900LUMEU-0", "asin": "B000FOIJS6", "price": "$116.35", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "PFU HHKB Professional Hybrid PD-KB800B", "asin": "B082TXR61K", "price": "$266.62", "delivery": " Two-Day FREE delivery Fri, Apr 18 Only 9 left in stock - order soon."},
{"title": "HHKB PFU Professional Hybrid White PD-KB800W", "asin": "B082TT132L", "price": "$290.26", "delivery": "FREE delivery Apr 24 - 29"},
{"title": "LOFREE Flow84 Low Profile Mechanical Keyboard, 75 Percent Rechargeable Wireless Keyboards with Bluetooth and Wired Connection for Windows, Mac OS/Black Phantom Tactile Switches", "asin": "B0CJTTX3JH", "price": "$169.99", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "},
{"title": "EPOMAKER x Aula F75 Gasket Mechanical Keyboard, 75% Wireless Hot Swappable Gaming Keyboard with Five-Layer Padding&Knob, Bluetooth/2.4GHz/USB-C, RGB (Light Blue, LEOBOG Reaper Switch)", "asin": "B0CNT61VMZ", "price": "$67.99", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB- Happy Hacking Keyboard Wrist Rest (Red) (CG80000-270801)", "asin": "B0832F69TM", "price": "$55.00", "delivery": "FREE delivery Apr 22 - 24 Or fastest delivery Apr 18 - 22 Only 4 left in stock - order soon."},
{"title": "Keychron K2 Version 2 Wireless Gaming Mechanical Keyboard, Bluetooth/USB Wired Compact 84 Keys RGB LED Backlit N-Key Rollover Aluminum Frame for Mac Windows, Gateron G Pro Brown Switch", "asin": "B07YB32H52", "price": "$99.99", "delivery": "FREE delivery Sat, Apr 19 Only 3 left in stock - order soon."},
{"title": "FLYBOYS Regular Pubs Bag - Expanded Capacity Shoulder Bag - For Professional Pilots, General Aviation - 7.5 in X 10 in - Olive Green", "asin": "B099V1FTLX", "price": "$29.95", "delivery": "FREE delivery Apr 21 - 23 "},
{"title": "JALL 16\" Large Digital Wall Clock Timer, Remote Controll, 2 Alarms, LED Display, 8 RGB Color, Auto DST, Temperature for Living Room, Bedroom, Desk, Mounted, Gift for Elderly (White Orange, 16 inches)", "asin": "B0DCVV8J98", "price": "$32.99", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "}]
<|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": "2025-04-16T17:31:33.854Z", // 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": "2025-04-16T17:31:13.241Z", "action": "input", "action_argument": "hhkb"}
{"timestamp": "2025-04-16T17:31:14.407Z", "action": "click", "action_argument": "search"}
<|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": "hhkb"}],
"promotion_items": [{"title": "nuphy Air75 V2 Portable 75% Mechanical Keyboard,Wireless Keyboard,Supports Bluetooth/2.4G/USB-C RGB Gaming Keyboards,Compatible with Windows/Mac OS/Linux Systems Grey-Gateron Brown Switch ", "asin": "B0CMZRBGMG", "price": "$139.99", "quantity": ""},
{"title": "Womier Retro 75% Gaming Keyboard with OLED Display&Knob, M87 Pro Bluetooth 5.1/2.4GHz /USB-C Wireless Mechanical Keyboard with Hot-Swappable Custom Switch, Compact Gamer RGB Keyboard-Grey ", "asin": "B0C9THQ36P", "price": "$72.99", "quantity": ""},
{"title": "LOFREE Flow84 Low Profile Mechanical Keyboard, 75 Percent Rechargeable Wireless Keyboards with Bluetooth and Wired Connection for Windows, Mac OS/Black Phantom Tactile Switches ", "asin": "B0CJTTX3JH", "price": "$169.99", "quantity": ""},
{"title": "Keychron K3 Version 2, 84 Keys Ultra-Slim Wireless Bluetooth/USB Wired Mechanical Keyboard with White LED Backlit, Low-Profile Gateron Mechanical Brown Switch Compatible with Mac Windows ", "asin": "B08LSJ4RHH", "price": "$62.99", "quantity": ""},
{"title": "nuphy Air96 V2 Wireless Mechanical Keyboard,100 Keys Gaming Keyboard,Supports Bluetooth 5.1,2.4G and Wired Connection,for PC/Laptop/Windows/Mac -Grey Gateron Moss Switch ", "asin": "B0CRKR24FC", "price": "$158.05", "quantity": ""},
{"title": "LOFREE Flow84 Low Profile Mechanical Keyboard, 75 Percent Rechargeable Wireless Keyboards with Bluetooth and Wired Connection for Windows, Mac OS/Black Phantom Tactile Switches ", "asin": "B0CJTTX3JH", "price": "$169.99", "quantity": ""},
{"title": "ProtoArc Foldable Keyboard and Mouse, XKM01 True Full-Size Folding Keyboard Mouse Combo for Business and Travel, 2.4G+Dual Bluetooth Portable Mouse Keyboard for Laptop iPads Tablets - Black ", "asin": "B0CM3CYQ4J", "price": "$66.37", "quantity": ""},
{"title": "nuphy Air75 V2 Portable 75% Mechanical Keyboard,Wireless Keyboard,Supports Bluetooth/2.4G/USB-C RGB Gaming Keyboards,Compatible with Windows/Mac OS/Linux Systems Grey-Gateron Brown Switch ", "asin": "B0CMZRBGMG", "price": "$139.99", "quantity": ""},
{"title": "nuphy Air96 V2 Wireless Mechanical Keyboard,100 Keys Gaming Keyboard,Supports Bluetooth 5.1,2.4G and Wired Connection,for PC/Laptop/Windows/Mac -Grey Gateron Moss Switch ", "asin": "B0CRKR24FC", "price": "$158.05", "quantity": ""},
{"title": "WOBKEY Rainy 75 CNC Aluminum HMX/JWK/Cocoa Switches Triple-Mode Connectivity Mechanical Keyboard with Superior Acoustics, RGB/PP/Mirrored Glass/3500mAh/Violet Switch (Standard - White) ", "asin": "B0CS65JXNM", "price": "$139.00", "quantity": ""}],
"ads": [{"title": "LOFREE Edge Low Profile Mechanical Keyboard, 75% Rechargeable Bluetooth and Wired Connection for Window, Mac OS/POM Switches 2.0, Carbon Fiber Top Case, Mg Alloy Bottom Case (Volcano Grey)", "asin": "B0D8KHS7LF"},
{"title": "LOFREE Edge Low Profile Mechanical Keyboard, 75% Rechargeable Bluetooth and Wired Connection for Window, Mac OS/POM Switches 2.0, Carbon Fiber Top Case, Mg Alloy Bottom Case (Metallic Silver)", "asin": "B0D8KL2CD4"}],
"search_results": [{"title": "nuphy Air75 V2 Portable 75% Mechanical Keyboard,Wireless Keyboard,Supports Bluetooth/2.4G/USB-C RGB Gaming Keyboards,Compatible with Windows/Mac OS/Linux Systems Grey-Gateron Brown Switch", "asin": "B0CMZRBGMG", "price": "$139.99", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "},
{"title": "HHKB - Happy Hacking Keyboard Professional Hybrid Type-S (Wireless, Bluetooth, Wired, USB, Silent, Mac, Windows, White, Blank) with 2 Year Advance Exchange Warranty", "asin": "B083NFY5P1", "price": "$262.06", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB - Happy Hacking Keyboard Professional Classic (Wired, USB-C, Mac, Windows, White, Printed) with 2 Year Advance Exchange Warranty", "asin": "B083MW6QVX", "price": "$206.29", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB - Happy Hacking Keyboard Professional Hybrid (Wireless, Bluetooth, Wired, USB, Mac, Windows, Charcoal, Printed) with 2 Year Advance Exchange Warranty", "asin": "B083N35WNL", "price": "$235.16", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB - Happy Hacking Keyboard Studio (Wireless, Bluetooth, Wired, USB, Silent, Mac, Windows, Charcoal, Printed)", "asin": "B0CKG1JN7L", "price": "$300.03", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB - Happy Hacking Keyboard Lid (CG01000-299001)", "asin": "B084DWG77B", "price": "$26.55", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "LOFREE Touch PBT Wireless Mouse with USB Receiver, Bluetooth, Wired Connection, Rechargeable, 4000 DPI with OLED Screen Compatible with Glass Surface for Mac Windows PC Notebook/Block Retro Grey", "asin": "B0CT9VX5ZM", "price": "$69.99", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "},
{"title": "HHKB PFU Professional Hybrid Type-S PD-KB800BS", "asin": "B082TYNNL2", "price": "$298.90", "delivery": " Two-Day FREE delivery Fri, Apr 18"},
{"title": "PFU HHKB Professional Hybrid Type-S White PD-KB800WS", "asin": "B082TQK2SB", "price": "$298.00", "delivery": " Two-Day FREE delivery Fri, Apr 18 Only 16 left in stock - order soon."},
{"title": "Logitech MX Keys Mini Minimalist Wireless Illuminated Keyboard, Compact, Bluetooth, Backlit, USB-C, Compatible with Apple macOS, iOS, Windows, Linux, Android, Metal Build - Graphite", "asin": "B098JPSVKY", "price": "$99.18", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "PFU HHKB Professional Series Key Top Set, White, Non-Engraved, 60 Keys, USB, Touch Typing Aid", "asin": "B00FQ5FZNQ", "price": "$71.00", "delivery": " Two-Day FREE delivery Fri, Apr 18 Only 12 left in stock - order soon."},
{"title": "ProtoArc Foldable Keyboard and Mouse, XKM01 True Full-Size Folding Keyboard Mouse Combo for Business and Travel, 2.4G+Dual Bluetooth Portable Mouse Keyboard for Laptop iPads Tablets - Black", "asin": "B0CM3CYQ4J", "price": "$66.37", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "},
{"title": "Carrying Case for Happy Hacking Keyboard PD-KB01SD [Japan Import]", "asin": "B000FHSNFW", "price": "$59.00", "delivery": " Two-Day FREE delivery Fri, Apr 18 Only 10 left in stock - order soon."},
{"title": "CHERRY G80 TouchBoard, Light Grey - 104 Keys, G80-11900LUMEU-0", "asin": "B000FOIJS6", "price": "$116.35", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "PFU HHKB Professional Hybrid PD-KB800B", "asin": "B082TXR61K", "price": "$266.62", "delivery": " Two-Day FREE delivery Fri, Apr 18 Only 9 left in stock - order soon."},
{"title": "HHKB PFU Professional Hybrid White PD-KB800W", "asin": "B082TT132L", "price": "$290.26", "delivery": "FREE delivery Apr 24 - 29"},
{"title": "LOFREE Flow84 Low Profile Mechanical Keyboard, 75 Percent Rechargeable Wireless Keyboards with Bluetooth and Wired Connection for Windows, Mac OS/Black Phantom Tactile Switches", "asin": "B0CJTTX3JH", "price": "$169.99", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "},
{"title": "EPOMAKER x Aula F75 Gasket Mechanical Keyboard, 75% Wireless Hot Swappable Gaming Keyboard with Five-Layer Padding&Knob, Bluetooth/2.4GHz/USB-C, RGB (Light Blue, LEOBOG Reaper Switch)", "asin": "B0CNT61VMZ", "price": "$67.99", "delivery": " One-Day FREE delivery Tomorrow, Apr 17"},
{"title": "HHKB- Happy Hacking Keyboard Wrist Rest (Red) (CG80000-270801)", "asin": "B0832F69TM", "price": "$55.00", "delivery": "FREE delivery Apr 22 - 24 Or fastest delivery Apr 18 - 22 Only 4 left in stock - order soon."},
{"title": "Keychron K2 Version 2 Wireless Gaming Mechanical Keyboard, Bluetooth/USB Wired Compact 84 Keys RGB LED Backlit N-Key Rollover Aluminum Frame for Mac Windows, Gateron G Pro Brown Switch", "asin": "B07YB32H52", "price": "$99.99", "delivery": "FREE delivery Sat, Apr 19 Only 3 left in stock - order soon."},
{"title": "FLYBOYS Regular Pubs Bag - Expanded Capacity Shoulder Bag - For Professional Pilots, General Aviation - 7.5 in X 10 in - Olive Green", "asin": "B099V1FTLX", "price": "$29.95", "delivery": "FREE delivery Apr 21 - 23 "},
{"title": "JALL 16\" Large Digital Wall Clock Timer, Remote Controll, 2 Alarms, LED Display, 8 RGB Color, Auto DST, Temperature for Living Room, Bedroom, Desk, Mounted, Gift for Elderly (White Orange, 16 inches)", "asin": "B0DCVV8J98", "price": "$32.99", "delivery": " One-DayFREE delivery Tomorrow, Apr 17 "}]
<|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": "2025-04-16T17:31:33.854Z", // 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>
