<|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": "2025-04-03T00:18:37.474Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-03T00:18:53.155Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-03T00:19:00.895Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-03T00:19:14.292Z", "action": "click_product", "action_argument": "B0B99HTD3B"}
{"timestamp": "2025-04-03T00:19:19.328Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-03T00:19:46.282Z", "action": "click_product", "action_argument": "B0BVKZ6P9C"}
{"timestamp": "2025-04-03T00:20:31.173Z", "action": "click_product", "action_argument": "B0B99HTD3B"}
{"timestamp": "2025-04-03T00:20:49.411Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-03T00:21:11.685Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-03T00:22:04.407Z", "action": "purchase", "action_argument": "B0C5LK9L62"}
{"timestamp": "2025-04-03T00:25:06.861Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-03T00:26:28.000Z", "action": "click", "action_argument": "cart_side_bar"}
{"timestamp": "2025-04-03T00:26:45.981Z", "action": "click", "action_argument": "cart_side_bar"}
{"timestamp": "2025-04-03T00:27:06.753Z", "action": "purchase", "action_argument": "B0C5LK9L62"}
{"timestamp": "2025-04-05T02:16:05.841Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-05T02:16:31.195Z", "action": "click_product", "action_argument": ""}
{"timestamp": "2025-04-05T02:16:50.730Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-05T02:17:36.977Z", "action": "input", "action_argument": "sfx "}
{"timestamp": "2025-04-05T02:17:37.079Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-05T02:17:56.957Z", "action": "click_product", "action_argument": "B0D45PQ8C4"}
{"timestamp": "2025-04-05T02:18:06.772Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-05T02:19:24.135Z", "action": "purchase", "action_argument": "B0D45RN3KZ"}
{"timestamp": "2025-04-05T02:19:35.503Z", "action": "click_product", "action_argument": "B07C5VG64V"}
{"timestamp": "2025-04-05T02:19:51.901Z", "action": "click", "action_argument": "page_related"}
{"timestamp": "2025-04-05T02:20:01.376Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:20:03.189Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:20:57.947Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:21:18.459Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-05T02:21:19.412Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-05T02:22:42.161Z", "action": "click", "action_argument": "page_related"}
{"timestamp": "2025-04-05T02:23:00.955Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:23:08.335Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:24:47.508Z", "action": "purchase", "action_argument": "B09J91SVLF"}
<|memory_end|>

<|action_start|>
{"timestamp": "2025-04-05T02:24:53.617Z", "action": "click", "action_argument": "cart_side_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": "SAMSUNG 990 PRO Series - 2TB PCIe Gen4. X4 NVMe 2.0c - M.2 Internal SSD (MZ-V9P2T0B/AM)", "asin": "B0BHJJ9Y77", "price": "$169.99", "quantity": ""},
{"title": "ASUS ROG Strix B850-I Gaming WiFi AMD AM5 B850 Mini-ITX mITX Motherboard 10+2+1 Stages, DDR5, 2.5G LAN, WiFi 7, 2X M.2, PCIe\u00ae 5.0 x16, USB 20Gbps Type-C\u00ae, AI Overclocking, AI Networking II, Aura Sync", "asin": "B0DHCQ1MPZ", "price": "$299.99", "quantity": ""},
{"title": "ARCTIC MX-4 (4 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very high Thermal Conductivity, Long Durability, Safe Application, Non-Conductive", "asin": "B07L9BDY3T", "price": "$6.99", "quantity": ""},
{"title": "SAMSUNG 990 PRO SSD 4TB PCIe 4.0 M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and Heavy Duty Workstations, MZ-V9P4T0B/AM, Black", "asin": "B0CHGT1KFJ", "price": "$279.99", "quantity": ""},
{"title": "ASUS ROG Strix X870-A Gaming WiFi AMD AM5 X870 ATX Motherboard 16+2+2 Power Stages, Dynamic OC Switcher, Core Flex, DDR5 AEMP, WiFi 7, 4X M.2, PCIe\u00ae 5.0, Q-Release Slim, USB4\u00ae, AI OCing & Networking", "asin": "B0DF12WKQY", "price": "$299.99", "quantity": ""},
{"title": "Noctua NF-A12x25 PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (120mm, Black)", "asin": "B09C6DQDNT", "price": "$34.95", "quantity": ""},
{"title": "GIGABYTE X870 AORUS Elite WIFI7 ICE AMD AM5 LGA 1718 Motherboard, ATX, DDR5, 4X M.2, PCIe 5.0, USB4, WIFI7, 2.5GbE LAN, EZ-Latch, 5-Year Warranty", "asin": "B0DGVGRVLQ", "price": "$289.99", "quantity": ""},
{"title": "G.SKILL Trident Z5 RGB Series (Intel XMP 3.0) DDR5 RAM 64GB (2x32GB) 6400MT/s CL32-39-39-102 1.40V Desktop Computer Memory UDIMM - Matte Black (F5-6400J3239G32GX2-TZ5RK)", "asin": "B0BJ7X9P1W", "price": "$209.99", "quantity": ""},
{"title": "AMD RYZEN 7 9800X3D 8-Core, 16-Thread Desktop Processor", "asin": "B0DKFMSMYK", "price": "$479.00", "quantity": ""},
{"title": "WD_BLACK 2TB SN850X NVMe Internal Gaming SSD Solid State Drive - Gen4 PCIe, M.2 2280, Up to 7,300 MB/s - WDS200T2X0E", "asin": "B0B7CMZ3QH", "price": "$148.99", "quantity": ""},
{"title": "AMD Ryzen 7 7800X3D 8-Core, 16-Thread Desktop Processor", "asin": "B0BTZB7F88", "price": "$409.00", "quantity": ""},
{"title": "AMD Ryzen 9 7900X 12-Core, 24-Thread Unlocked Desktop Processor", "asin": "B0BBJ59WJ4", "price": "$336.16", "quantity": ""},
{"title": "ASUS ROG Strix B650E-I Gaming WiFi AMD B650 AM5 Ryzen\u2122 Desktop 9000 8000 & 7000 Mini-ITX mITX Motherboard, 10+2 Power Stages, DDR5, 2X M.2 Slot, PCIe\u00ae 5.0, 2.5G LAN, WiFi 6E, USB 3.2 Gen 2x2 Type-C", "asin": "B0BP9LJBP8", "price": "$305.00", "quantity": ""},
{"title": "ASUS ROG STRIX X870-I GAMING WIFI AMD AM5 X870 Mini ITX motherboard 10+2+1 power stages, Dynamic OC Switcher, Core Flex, DDR5 AEMP, WiFi7, 2x M.2, PCIe\u00ae5.0, Q-Release Slim, USB4, AI OCing & Networking", "asin": "B0DDZWJ1KX", "price": "$449.99", "quantity": ""},
{"title": "Noctua NH-D15 chromax.Black CPU Cooler with NA-HC4 chromax.White Heatsink Covers", "asin": "B09GYM2BP7", "price": "$134.95", "quantity": ""},
{"title": "Noctua NH-D15 chromax.Black CPU Cooler with NA-HC3 chromax.Black.swap Heatsink Covers", "asin": "B09GYK3QR4", "price": "$134.95", "quantity": ""}],
"active_items": [{"title": "Noctua 360mm AIO Upgrade Bundle (3X NF-A12x25 PWM chromax.Black.swap 120mm Fans Plus 1x NT-H2 Thermal Paste)", "asin": "B09J91SVLF", "delivery": "Delivery Thu, Apr 10", "selected": true, "options": []},
{"title": "CORSAIR SF1000 (2024) Fully Modular Low Noise 80 Plus Platinum ATX Power Supply \u2013 ATX 3.0 Compliant \u2013 PCIe 5.0 Ready \u2013 SFX-to-ATX Bracket Included \u2013 Black", "asin": "B0D45RN3KZ", "delivery": "One-Day FREE delivery Tomorrow, Apr 5 FREE Returns", "quantity": "1", "selected": true, "options": [{"Style": "SF (ATX 3.1 & PCIe 5.1)"}, {"Size": "1000 Watts"}]},
{"title": "G.SKILL Trident Z5 Royal Neo Series (AMD Expo) DDR5 RAM 32GB (2x16GB) 6000MT/s CL28-36-36-96 1.40V Desktop Computer Memory UDIMM - Silver (F5-6000J2836G16GX2-TR5NS)", "asin": "B0DD2LKVMD", "delivery": "One-Day FREE delivery Tomorrow, Apr 5 FREE Returns", "quantity": "1", "selected": true, "options": [{"Size": "32GB (2x16GB)"}, {"Style": "DDR5-6000 28-36-36-96 1.40V"}, {"Color": "Silver"}]}],
"saved_items": [{"title": "AMD Ryzen 9 9950X3D 16-Core Processor", "asin": "B0DVZSG8D5", "options": []},
{"title": "Avery Multi-Use Removable Labels, 1/2\" x 3/4\", White, Non-Printable, 525 Blank Labels Total (6737)", "asin": "B004INKGYA", "options": [{"Style": "Labels"}]},
{"title": "Roysili Magnetic Spice Rack for Refrigerator - 4 Pack Black with Magnetic Paper Towel Holder", "asin": "B0BQYGHRS8", "options": [{"Size": "4 Pack"}, {"Color": "Black"}]}]
<|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": "2025-04-05T02:25:12.725Z", // 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": "2025-04-03T00:18:37.474Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-03T00:18:53.155Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-03T00:19:00.895Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-03T00:19:14.292Z", "action": "click_product", "action_argument": "B0B99HTD3B"}
{"timestamp": "2025-04-03T00:19:19.328Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-03T00:19:46.282Z", "action": "click_product", "action_argument": "B0BVKZ6P9C"}
{"timestamp": "2025-04-03T00:20:31.173Z", "action": "click_product", "action_argument": "B0B99HTD3B"}
{"timestamp": "2025-04-03T00:20:49.411Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-03T00:21:11.685Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-03T00:22:04.407Z", "action": "purchase", "action_argument": "B0C5LK9L62"}
{"timestamp": "2025-04-03T00:25:06.861Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-03T00:26:28.000Z", "action": "click", "action_argument": "cart_side_bar"}
{"timestamp": "2025-04-03T00:26:45.981Z", "action": "click", "action_argument": "cart_side_bar"}
{"timestamp": "2025-04-03T00:27:06.753Z", "action": "purchase", "action_argument": "B0C5LK9L62"}
{"timestamp": "2025-04-05T02:16:05.841Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-05T02:16:31.195Z", "action": "click_product", "action_argument": ""}
{"timestamp": "2025-04-05T02:16:50.730Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-05T02:17:36.977Z", "action": "input", "action_argument": "sfx "}
{"timestamp": "2025-04-05T02:17:37.079Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-05T02:17:56.957Z", "action": "click_product", "action_argument": "B0D45PQ8C4"}
{"timestamp": "2025-04-05T02:18:06.772Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-05T02:19:24.135Z", "action": "purchase", "action_argument": "B0D45RN3KZ"}
{"timestamp": "2025-04-05T02:19:35.503Z", "action": "click_product", "action_argument": "B07C5VG64V"}
{"timestamp": "2025-04-05T02:19:51.901Z", "action": "click", "action_argument": "page_related"}
{"timestamp": "2025-04-05T02:20:01.376Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:20:03.189Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:20:57.947Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:21:18.459Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-05T02:21:19.412Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-05T02:22:42.161Z", "action": "click", "action_argument": "page_related"}
{"timestamp": "2025-04-05T02:23:00.955Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:23:08.335Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:24:47.508Z", "action": "purchase", "action_argument": "B09J91SVLF"}
<|memory_end|>

<|action_start|>
{"timestamp": "2025-04-05T02:24:53.617Z", "action": "click", "action_argument": "cart_side_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": "SAMSUNG 990 PRO Series - 2TB PCIe Gen4. X4 NVMe 2.0c - M.2 Internal SSD (MZ-V9P2T0B/AM)", "asin": "B0BHJJ9Y77", "price": "$169.99", "quantity": ""},
{"title": "ASUS ROG Strix B850-I Gaming WiFi AMD AM5 B850 Mini-ITX mITX Motherboard 10+2+1 Stages, DDR5, 2.5G LAN, WiFi 7, 2X M.2, PCIe\u00ae 5.0 x16, USB 20Gbps Type-C\u00ae, AI Overclocking, AI Networking II, Aura Sync", "asin": "B0DHCQ1MPZ", "price": "$299.99", "quantity": ""},
{"title": "ARCTIC MX-4 (4 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very high Thermal Conductivity, Long Durability, Safe Application, Non-Conductive", "asin": "B07L9BDY3T", "price": "$6.99", "quantity": ""},
{"title": "SAMSUNG 990 PRO SSD 4TB PCIe 4.0 M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and Heavy Duty Workstations, MZ-V9P4T0B/AM, Black", "asin": "B0CHGT1KFJ", "price": "$279.99", "quantity": ""},
{"title": "ASUS ROG Strix X870-A Gaming WiFi AMD AM5 X870 ATX Motherboard 16+2+2 Power Stages, Dynamic OC Switcher, Core Flex, DDR5 AEMP, WiFi 7, 4X M.2, PCIe\u00ae 5.0, Q-Release Slim, USB4\u00ae, AI OCing & Networking", "asin": "B0DF12WKQY", "price": "$299.99", "quantity": ""},
{"title": "Noctua NF-A12x25 PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (120mm, Black)", "asin": "B09C6DQDNT", "price": "$34.95", "quantity": ""},
{"title": "GIGABYTE X870 AORUS Elite WIFI7 ICE AMD AM5 LGA 1718 Motherboard, ATX, DDR5, 4X M.2, PCIe 5.0, USB4, WIFI7, 2.5GbE LAN, EZ-Latch, 5-Year Warranty", "asin": "B0DGVGRVLQ", "price": "$289.99", "quantity": ""},
{"title": "G.SKILL Trident Z5 RGB Series (Intel XMP 3.0) DDR5 RAM 64GB (2x32GB) 6400MT/s CL32-39-39-102 1.40V Desktop Computer Memory UDIMM - Matte Black (F5-6400J3239G32GX2-TZ5RK)", "asin": "B0BJ7X9P1W", "price": "$209.99", "quantity": ""},
{"title": "AMD RYZEN 7 9800X3D 8-Core, 16-Thread Desktop Processor", "asin": "B0DKFMSMYK", "price": "$479.00", "quantity": ""},
{"title": "WD_BLACK 2TB SN850X NVMe Internal Gaming SSD Solid State Drive - Gen4 PCIe, M.2 2280, Up to 7,300 MB/s - WDS200T2X0E", "asin": "B0B7CMZ3QH", "price": "$148.99", "quantity": ""},
{"title": "AMD Ryzen 7 7800X3D 8-Core, 16-Thread Desktop Processor", "asin": "B0BTZB7F88", "price": "$409.00", "quantity": ""},
{"title": "AMD Ryzen 9 7900X 12-Core, 24-Thread Unlocked Desktop Processor", "asin": "B0BBJ59WJ4", "price": "$336.16", "quantity": ""},
{"title": "ASUS ROG Strix B650E-I Gaming WiFi AMD B650 AM5 Ryzen\u2122 Desktop 9000 8000 & 7000 Mini-ITX mITX Motherboard, 10+2 Power Stages, DDR5, 2X M.2 Slot, PCIe\u00ae 5.0, 2.5G LAN, WiFi 6E, USB 3.2 Gen 2x2 Type-C", "asin": "B0BP9LJBP8", "price": "$305.00", "quantity": ""},
{"title": "ASUS ROG STRIX X870-I GAMING WIFI AMD AM5 X870 Mini ITX motherboard 10+2+1 power stages, Dynamic OC Switcher, Core Flex, DDR5 AEMP, WiFi7, 2x M.2, PCIe\u00ae5.0, Q-Release Slim, USB4, AI OCing & Networking", "asin": "B0DDZWJ1KX", "price": "$449.99", "quantity": ""},
{"title": "Noctua NH-D15 chromax.Black CPU Cooler with NA-HC4 chromax.White Heatsink Covers", "asin": "B09GYM2BP7", "price": "$134.95", "quantity": ""},
{"title": "Noctua NH-D15 chromax.Black CPU Cooler with NA-HC3 chromax.Black.swap Heatsink Covers", "asin": "B09GYK3QR4", "price": "$134.95", "quantity": ""}],
"active_items": [{"title": "Noctua 360mm AIO Upgrade Bundle (3X NF-A12x25 PWM chromax.Black.swap 120mm Fans Plus 1x NT-H2 Thermal Paste)", "asin": "B09J91SVLF", "delivery": "Delivery Thu, Apr 10", "selected": true, "options": []},
{"title": "CORSAIR SF1000 (2024) Fully Modular Low Noise 80 Plus Platinum ATX Power Supply \u2013 ATX 3.0 Compliant \u2013 PCIe 5.0 Ready \u2013 SFX-to-ATX Bracket Included \u2013 Black", "asin": "B0D45RN3KZ", "delivery": "One-Day FREE delivery Tomorrow, Apr 5 FREE Returns", "quantity": "1", "selected": true, "options": [{"Style": "SF (ATX 3.1 & PCIe 5.1)"}, {"Size": "1000 Watts"}]},
{"title": "G.SKILL Trident Z5 Royal Neo Series (AMD Expo) DDR5 RAM 32GB (2x16GB) 6000MT/s CL28-36-36-96 1.40V Desktop Computer Memory UDIMM - Silver (F5-6000J2836G16GX2-TR5NS)", "asin": "B0DD2LKVMD", "delivery": "One-Day FREE delivery Tomorrow, Apr 5 FREE Returns", "quantity": "1", "selected": true, "options": [{"Size": "32GB (2x16GB)"}, {"Style": "DDR5-6000 28-36-36-96 1.40V"}, {"Color": "Silver"}]}],
"saved_items": [{"title": "AMD Ryzen 9 9950X3D 16-Core Processor", "asin": "B0DVZSG8D5", "options": []},
{"title": "Avery Multi-Use Removable Labels, 1/2\" x 3/4\", White, Non-Printable, 525 Blank Labels Total (6737)", "asin": "B004INKGYA", "options": [{"Style": "Labels"}]},
{"title": "Roysili Magnetic Spice Rack for Refrigerator - 4 Pack Black with Magnetic Paper Towel Holder", "asin": "B0BQYGHRS8", "options": [{"Size": "4 Pack"}, {"Color": "Black"}]}]
<|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": "2025-04-05T02:25:12.725Z", // 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": "2025-04-05T02:25:12.725Z","action": "click_product","acion_argument": "B09J91SVLF",}</answer>
rule
<answer>{"timestamp": "2025-04-05T02:25:12.725Z","action": "click_product","acion_argument": "B09J91SVLF",}</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": "2025-04-03T00:18:37.474Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-03T00:18:53.155Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-03T00:19:00.895Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-03T00:19:14.292Z", "action": "click_product", "action_argument": "B0B99HTD3B"}
{"timestamp": "2025-04-03T00:19:19.328Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-03T00:19:46.282Z", "action": "click_product", "action_argument": "B0BVKZ6P9C"}
{"timestamp": "2025-04-03T00:20:31.173Z", "action": "click_product", "action_argument": "B0B99HTD3B"}
{"timestamp": "2025-04-03T00:20:49.411Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-03T00:21:11.685Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-03T00:22:04.407Z", "action": "purchase", "action_argument": "B0C5LK9L62"}
{"timestamp": "2025-04-03T00:25:06.861Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-03T00:26:28.000Z", "action": "click", "action_argument": "cart_side_bar"}
{"timestamp": "2025-04-03T00:26:45.981Z", "action": "click", "action_argument": "cart_side_bar"}
{"timestamp": "2025-04-03T00:27:06.753Z", "action": "purchase", "action_argument": "B0C5LK9L62"}
{"timestamp": "2025-04-05T02:16:05.841Z", "action": "click", "action_argument": "nav_bar"}
{"timestamp": "2025-04-05T02:16:31.195Z", "action": "click_product", "action_argument": ""}
{"timestamp": "2025-04-05T02:16:50.730Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-05T02:17:36.977Z", "action": "input", "action_argument": "sfx "}
{"timestamp": "2025-04-05T02:17:37.079Z", "action": "click", "action_argument": "suggested_term"}
{"timestamp": "2025-04-05T02:17:56.957Z", "action": "click_product", "action_argument": "B0D45PQ8C4"}
{"timestamp": "2025-04-05T02:18:06.772Z", "action": "click", "action_argument": "product_option"}
{"timestamp": "2025-04-05T02:19:24.135Z", "action": "purchase", "action_argument": "B0D45RN3KZ"}
{"timestamp": "2025-04-05T02:19:35.503Z", "action": "click_product", "action_argument": "B07C5VG64V"}
{"timestamp": "2025-04-05T02:19:51.901Z", "action": "click", "action_argument": "page_related"}
{"timestamp": "2025-04-05T02:20:01.376Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:20:03.189Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:20:57.947Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:21:18.459Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-05T02:21:19.412Z", "action": "click", "action_argument": "quantity"}
{"timestamp": "2025-04-05T02:22:42.161Z", "action": "click", "action_argument": "page_related"}
{"timestamp": "2025-04-05T02:23:00.955Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:23:08.335Z", "action": "click", "action_argument": "other"}
{"timestamp": "2025-04-05T02:24:47.508Z", "action": "purchase", "action_argument": "B09J91SVLF"}
<|memory_end|>

<|action_start|>
{"timestamp": "2025-04-05T02:24:53.617Z", "action": "click", "action_argument": "cart_side_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": "SAMSUNG 990 PRO Series - 2TB PCIe Gen4. X4 NVMe 2.0c - M.2 Internal SSD (MZ-V9P2T0B/AM)", "asin": "B0BHJJ9Y77", "price": "$169.99", "quantity": ""},
{"title": "ASUS ROG Strix B850-I Gaming WiFi AMD AM5 B850 Mini-ITX mITX Motherboard 10+2+1 Stages, DDR5, 2.5G LAN, WiFi 7, 2X M.2, PCIe\u00ae 5.0 x16, USB 20Gbps Type-C\u00ae, AI Overclocking, AI Networking II, Aura Sync", "asin": "B0DHCQ1MPZ", "price": "$299.99", "quantity": ""},
{"title": "ARCTIC MX-4 (4 g) - Premium Performance Thermal Paste for All Processors (CPU, GPU - PC), Very high Thermal Conductivity, Long Durability, Safe Application, Non-Conductive", "asin": "B07L9BDY3T", "price": "$6.99", "quantity": ""},
{"title": "SAMSUNG 990 PRO SSD 4TB PCIe 4.0 M.2 2280 Internal Solid State Hard Drive, Seq. Read Speeds Up to 7,450 MB/s for High End Computing, Gaming, and Heavy Duty Workstations, MZ-V9P4T0B/AM, Black", "asin": "B0CHGT1KFJ", "price": "$279.99", "quantity": ""},
{"title": "ASUS ROG Strix X870-A Gaming WiFi AMD AM5 X870 ATX Motherboard 16+2+2 Power Stages, Dynamic OC Switcher, Core Flex, DDR5 AEMP, WiFi 7, 4X M.2, PCIe\u00ae 5.0, Q-Release Slim, USB4\u00ae, AI OCing & Networking", "asin": "B0DF12WKQY", "price": "$299.99", "quantity": ""},
{"title": "Noctua NF-A12x25 PWM chromax.Black.swap, Premium Quiet Fan, 4-Pin (120mm, Black)", "asin": "B09C6DQDNT", "price": "$34.95", "quantity": ""},
{"title": "GIGABYTE X870 AORUS Elite WIFI7 ICE AMD AM5 LGA 1718 Motherboard, ATX, DDR5, 4X M.2, PCIe 5.0, USB4, WIFI7, 2.5GbE LAN, EZ-Latch, 5-Year Warranty", "asin": "B0DGVGRVLQ", "price": "$289.99", "quantity": ""},
{"title": "G.SKILL Trident Z5 RGB Series (Intel XMP 3.0) DDR5 RAM 64GB (2x32GB) 6400MT/s CL32-39-39-102 1.40V Desktop Computer Memory UDIMM - Matte Black (F5-6400J3239G32GX2-TZ5RK)", "asin": "B0BJ7X9P1W", "price": "$209.99", "quantity": ""},
{"title": "AMD RYZEN 7 9800X3D 8-Core, 16-Thread Desktop Processor", "asin": "B0DKFMSMYK", "price": "$479.00", "quantity": ""},
{"title": "WD_BLACK 2TB SN850X NVMe Internal Gaming SSD Solid State Drive - Gen4 PCIe, M.2 2280, Up to 7,300 MB/s - WDS200T2X0E", "asin": "B0B7CMZ3QH", "price": "$148.99", "quantity": ""},
{"title": "AMD Ryzen 7 7800X3D 8-Core, 16-Thread Desktop Processor", "asin": "B0BTZB7F88", "price": "$409.00", "quantity": ""},
{"title": "AMD Ryzen 9 7900X 12-Core, 24-Thread Unlocked Desktop Processor", "asin": "B0BBJ59WJ4", "price": "$336.16", "quantity": ""},
{"title": "ASUS ROG Strix B650E-I Gaming WiFi AMD B650 AM5 Ryzen\u2122 Desktop 9000 8000 & 7000 Mini-ITX mITX Motherboard, 10+2 Power Stages, DDR5, 2X M.2 Slot, PCIe\u00ae 5.0, 2.5G LAN, WiFi 6E, USB 3.2 Gen 2x2 Type-C", "asin": "B0BP9LJBP8", "price": "$305.00", "quantity": ""},
{"title": "ASUS ROG STRIX X870-I GAMING WIFI AMD AM5 X870 Mini ITX motherboard 10+2+1 power stages, Dynamic OC Switcher, Core Flex, DDR5 AEMP, WiFi7, 2x M.2, PCIe\u00ae5.0, Q-Release Slim, USB4, AI OCing & Networking", "asin": "B0DDZWJ1KX", "price": "$449.99", "quantity": ""},
{"title": "Noctua NH-D15 chromax.Black CPU Cooler with NA-HC4 chromax.White Heatsink Covers", "asin": "B09GYM2BP7", "price": "$134.95", "quantity": ""},
{"title": "Noctua NH-D15 chromax.Black CPU Cooler with NA-HC3 chromax.Black.swap Heatsink Covers", "asin": "B09GYK3QR4", "price": "$134.95", "quantity": ""}],
"active_items": [{"title": "Noctua 360mm AIO Upgrade Bundle (3X NF-A12x25 PWM chromax.Black.swap 120mm Fans Plus 1x NT-H2 Thermal Paste)", "asin": "B09J91SVLF", "delivery": "Delivery Thu, Apr 10", "selected": true, "options": []},
{"title": "CORSAIR SF1000 (2024) Fully Modular Low Noise 80 Plus Platinum ATX Power Supply \u2013 ATX 3.0 Compliant \u2013 PCIe 5.0 Ready \u2013 SFX-to-ATX Bracket Included \u2013 Black", "asin": "B0D45RN3KZ", "delivery": "One-Day FREE delivery Tomorrow, Apr 5 FREE Returns", "quantity": "1", "selected": true, "options": [{"Style": "SF (ATX 3.1 & PCIe 5.1)"}, {"Size": "1000 Watts"}]},
{"title": "G.SKILL Trident Z5 Royal Neo Series (AMD Expo) DDR5 RAM 32GB (2x16GB) 6000MT/s CL28-36-36-96 1.40V Desktop Computer Memory UDIMM - Silver (F5-6000J2836G16GX2-TR5NS)", "asin": "B0DD2LKVMD", "delivery": "One-Day FREE delivery Tomorrow, Apr 5 FREE Returns", "quantity": "1", "selected": true, "options": [{"Size": "32GB (2x16GB)"}, {"Style": "DDR5-6000 28-36-36-96 1.40V"}, {"Color": "Silver"}]}],
"saved_items": [{"title": "AMD Ryzen 9 9950X3D 16-Core Processor", "asin": "B0DVZSG8D5", "options": []},
{"title": "Avery Multi-Use Removable Labels, 1/2\" x 3/4\", White, Non-Printable, 525 Blank Labels Total (6737)", "asin": "B004INKGYA", "options": [{"Style": "Labels"}]},
{"title": "Roysili Magnetic Spice Rack for Refrigerator - 4 Pack Black with Magnetic Paper Towel Holder", "asin": "B0BQYGHRS8", "options": [{"Size": "4 Pack"}, {"Color": "Black"}]}]
<|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": "2025-04-05T02:25:12.725Z", // 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