<|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": "2025-04-22T21:11:59.196Z", "action": "input", "action_argument": "mask of n9s"}
{"timestamp": "2025-04-22T21:11:59.425Z", "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.
"promotion_items": [{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "price": "$14.99", "quantity": ""},
{"title": "50 Pack KN95 Face Masks - 5 Layer Protection Face Mask - Filtration>95% with Comfortable Elastic Ear Loop", "asin": "B09LC68X5G", "price": "$19.95", "quantity": ""},
{"title": "KN95 Face Masks 100 Pack, Breathable Comfortable Disposable Face Mask For Adults And Teens, Black", "asin": "B0D3PP7VK4", "price": "$26.99", "quantity": ""},
{"title": "NIOSH Certified MAKRITE 9500-N95 Pre-Formed Cone Particulate Respirator Mask, M/L Size (Pack of 20 Masks)", "asin": "B087D8W65K", "price": "$18.99", "quantity": ""},
{"title": "NIOSH Certified MAKRITE 9500-N95 Pre-Formed Cone Particulate Respirator Mask, M/L Size (Pack of 20 Masks)", "asin": "B087D8W65K", "price": "$18.99", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "price": "$14.99", "quantity": ""},
{"title": "Miuphro KN95 Disposable Face Mask 25 Pack 5-Ply Breathable Safety Masks Against PM2.5, Disposable Respirator Protection Mask for Men and Women Black", "asin": "B08NPR7WF2", "price": "$14.74", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "price": "$19.99", "quantity": ""},
{"title": "Miuphro KN95 Face Mask 50 Pack, Disposable Respirator Masks, 5 Layer Design Safety Mask for Protection, Ideal for Men and Women (White)", "asin": "B08NPKT21P", "price": "$19.74", "quantity": ""}],
"ads": [{"title": "LEVENIS KN95 Face Masks 50 Pack, Breathable Comfortable and Disposable KN95 Mask, Black", "asin": "B08VJM6VZC"},
{"title": "LEVENIS KN95 Face Masks 100 Pack, Breathable Comfortable and Disposable KN95 Mask, Black", "asin": "B09VYMDKPJ"},
{"title": "LEVENIS KN95 Face Masks 100 Pack, Breathable Comfortable and Disposable KN95 Mask, White", "asin": "B09VYL9Q8R"}],
"search_results": [{"title": "N95 Mask NIOSH Approved 25-Pack, Particulate Respirator N95 Face Masks Universal Fit - Individually Wrapped", "asin": "B09FZ7HVV9", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "KN95 Face Masks 100 Pack, Breathable Comfortable Disposable Face Mask For Adults And Teens, Black", "asin": "B0D3PP7VK4", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "3M Aura Particulate Respirator 9205+ N95, Lightweight, 3 Panel Designed Helps Provide Comfortable and Convenient Respiratory Protection, 3-Pack", "asin": "B095DZQ5MX", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Only 16 left in stock - order soon."},
{"title": "3M Aura Particulate N95 Respirator 9205+, Flat Fold Lightweight Design, Non-Valved, 20 Count (Pack of 1)", "asin": "B095FJ36H2", "delivery": " Overnight FREE delivery Overnight 4 AM - 8 AM"},
{"title": "BLScode KN95 Face Mask 60 Pack,Individually Wrapped 5-Layer face Masks,Filter Efficiency\u226595%", "asin": "B09FJT8R2G", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "KN95 Face Mask 50 PCS, Breathable Comfortable Masks, Against PM2.5 Disposable Masks", "asin": "B09NN8ZNP1", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Particulate Respirator 8511, Pack of 10, N95, NIOSH APPROVED, Cool Flow Exhalation Valve, Disposable, Braided Comfort Strap, M Noseclip, Personal Protective Equipment", "asin": "B07571J7V9", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "AccuMed BNX N95 Mask Black NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95B) Black", "asin": "B097HYFCN5", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "50 Pack KN95 Face Masks - 5 Layer Protection Face Mask - Filtration>95% with Comfortable Elastic Ear Loop", "asin": "B09LC68X5G", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "3M Aura Particulate Respirator 9205+ N95, Lightweight, Three Panel Designed Respirator Helps Provide Comfortable And Convenient Respiratory Protection, 10-Pack", "asin": "B095DVPTCT", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "Medtecs KN95 Face Masks Disposable - Individually Wrapped, 5 Ply Protection & Extra Wide Elastic Ear Loops Design, \u2267 95% Filtration Efficiency | Mask Extender included, 50 PC - Black", "asin": "B09SH3FF54", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "Honeywell Surgical N95 Respirator, Safety NIOSH-Approved, 20-pack (DC365N95HC)", "asin": "B096BGQ88W", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "G & F Products G & F 9118 Disposable Non-Toxic Dust and Filter Mask for cleaning, 50 Mask Value Pack (Pack of 3)", "asin": "B0DB8KMZ28", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Face Mask, Tri-Fold Cup/Fish Style, 10,20,50-Pack - Black, White (Model F95B,F95W)", "asin": "B09KF545WW", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Aura Particulate Respirator 9211+, N95, Pack of 10 Disposable Respirators, Individually Wrapped, Cool Flow Valve, Flat Fold Design Allows for Facial Movement, NIOSH Approved, Comfort Plus, Dust", "asin": "B0CG2G99MJ", "delivery": " Overnight FREE delivery Overnight 4 AM - 8 AM"},
{"title": "AccuMed N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask, Tri-Fold Cup/Fish Style, (10-Pack, Approval Number TC-84A-9362 / Model F95W) White", "asin": "B094DYKP3S", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "3M Aura Particulate Respirator 9205+, N95, Pack of 440 Disposable Respirators, Individually Wrapped, 3 Panel Flat Fold Design Allows for Facial Movements, Comfortable, NIOSH Approved", "asin": "B08J1THV9G", "delivery": "FREE delivery Apr 28 - 30"},
{"title": "Face mask black disposable with breathing-valve 10 pack | black face masks for men and woman 5 layer | disposable face mask for protection | breathable sport face mask lightweight comfortable on skin", "asin": "B08L3YN8HT", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Aura Particulate Respirator 9210+, N95, Pack of 20 Disposable Respirators, Convenient Individually Wrapped, NIOSH APPROVED, Stapled Flat Fold Design, Low Profile Design Reduces Eyewear Fogging", "asin": "B000TVSY9O", "delivery": " Overnight FREE delivery Overnight 4 AM - 8 AM"}]
<|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": "2025-04-22T21:12:47.627Z", // 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": "2025-04-22T21:11:59.196Z", "action": "input", "action_argument": "mask of n9s"}
{"timestamp": "2025-04-22T21:11:59.425Z", "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.
"promotion_items": [{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "price": "$14.99", "quantity": ""},
{"title": "50 Pack KN95 Face Masks - 5 Layer Protection Face Mask - Filtration>95% with Comfortable Elastic Ear Loop", "asin": "B09LC68X5G", "price": "$19.95", "quantity": ""},
{"title": "KN95 Face Masks 100 Pack, Breathable Comfortable Disposable Face Mask For Adults And Teens, Black", "asin": "B0D3PP7VK4", "price": "$26.99", "quantity": ""},
{"title": "NIOSH Certified MAKRITE 9500-N95 Pre-Formed Cone Particulate Respirator Mask, M/L Size (Pack of 20 Masks)", "asin": "B087D8W65K", "price": "$18.99", "quantity": ""},
{"title": "NIOSH Certified MAKRITE 9500-N95 Pre-Formed Cone Particulate Respirator Mask, M/L Size (Pack of 20 Masks)", "asin": "B087D8W65K", "price": "$18.99", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "price": "$14.99", "quantity": ""},
{"title": "Miuphro KN95 Disposable Face Mask 25 Pack 5-Ply Breathable Safety Masks Against PM2.5, Disposable Respirator Protection Mask for Men and Women Black", "asin": "B08NPR7WF2", "price": "$14.74", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "price": "$19.99", "quantity": ""},
{"title": "Miuphro KN95 Face Mask 50 Pack, Disposable Respirator Masks, 5 Layer Design Safety Mask for Protection, Ideal for Men and Women (White)", "asin": "B08NPKT21P", "price": "$19.74", "quantity": ""}],
"ads": [{"title": "LEVENIS KN95 Face Masks 50 Pack, Breathable Comfortable and Disposable KN95 Mask, Black", "asin": "B08VJM6VZC"},
{"title": "LEVENIS KN95 Face Masks 100 Pack, Breathable Comfortable and Disposable KN95 Mask, Black", "asin": "B09VYMDKPJ"},
{"title": "LEVENIS KN95 Face Masks 100 Pack, Breathable Comfortable and Disposable KN95 Mask, White", "asin": "B09VYL9Q8R"}],
"search_results": [{"title": "N95 Mask NIOSH Approved 25-Pack, Particulate Respirator N95 Face Masks Universal Fit - Individually Wrapped", "asin": "B09FZ7HVV9", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "KN95 Face Masks 100 Pack, Breathable Comfortable Disposable Face Mask For Adults And Teens, Black", "asin": "B0D3PP7VK4", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "3M Aura Particulate Respirator 9205+ N95, Lightweight, 3 Panel Designed Helps Provide Comfortable and Convenient Respiratory Protection, 3-Pack", "asin": "B095DZQ5MX", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Only 16 left in stock - order soon."},
{"title": "3M Aura Particulate N95 Respirator 9205+, Flat Fold Lightweight Design, Non-Valved, 20 Count (Pack of 1)", "asin": "B095FJ36H2", "delivery": " Overnight FREE delivery Overnight 4 AM - 8 AM"},
{"title": "BLScode KN95 Face Mask 60 Pack,Individually Wrapped 5-Layer face Masks,Filter Efficiency\u226595%", "asin": "B09FJT8R2G", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "KN95 Face Mask 50 PCS, Breathable Comfortable Masks, Against PM2.5 Disposable Masks", "asin": "B09NN8ZNP1", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Particulate Respirator 8511, Pack of 10, N95, NIOSH APPROVED, Cool Flow Exhalation Valve, Disposable, Braided Comfort Strap, M Noseclip, Personal Protective Equipment", "asin": "B07571J7V9", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "AccuMed BNX N95 Mask Black NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95B) Black", "asin": "B097HYFCN5", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "50 Pack KN95 Face Masks - 5 Layer Protection Face Mask - Filtration>95% with Comfortable Elastic Ear Loop", "asin": "B09LC68X5G", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "3M Aura Particulate Respirator 9205+ N95, Lightweight, Three Panel Designed Respirator Helps Provide Comfortable And Convenient Respiratory Protection, 10-Pack", "asin": "B095DVPTCT", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "Medtecs KN95 Face Masks Disposable - Individually Wrapped, 5 Ply Protection & Extra Wide Elastic Ear Loops Design, \u2267 95% Filtration Efficiency | Mask Extender included, 50 PC - Black", "asin": "B09SH3FF54", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "Honeywell Surgical N95 Respirator, Safety NIOSH-Approved, 20-pack (DC365N95HC)", "asin": "B096BGQ88W", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "G & F Products G & F 9118 Disposable Non-Toxic Dust and Filter Mask for cleaning, 50 Mask Value Pack (Pack of 3)", "asin": "B0DB8KMZ28", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Face Mask, Tri-Fold Cup/Fish Style, 10,20,50-Pack - Black, White (Model F95B,F95W)", "asin": "B09KF545WW", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Aura Particulate Respirator 9211+, N95, Pack of 10 Disposable Respirators, Individually Wrapped, Cool Flow Valve, Flat Fold Design Allows for Facial Movement, NIOSH Approved, Comfort Plus, Dust", "asin": "B0CG2G99MJ", "delivery": " Overnight FREE delivery Overnight 4 AM - 8 AM"},
{"title": "AccuMed N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask, Tri-Fold Cup/Fish Style, (10-Pack, Approval Number TC-84A-9362 / Model F95W) White", "asin": "B094DYKP3S", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "3M Aura Particulate Respirator 9205+, N95, Pack of 440 Disposable Respirators, Individually Wrapped, 3 Panel Flat Fold Design Allows for Facial Movements, Comfortable, NIOSH Approved", "asin": "B08J1THV9G", "delivery": "FREE delivery Apr 28 - 30"},
{"title": "Face mask black disposable with breathing-valve 10 pack | black face masks for men and woman 5 layer | disposable face mask for protection | breathable sport face mask lightweight comfortable on skin", "asin": "B08L3YN8HT", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Aura Particulate Respirator 9210+, N95, Pack of 20 Disposable Respirators, Convenient Individually Wrapped, NIOSH APPROVED, Stapled Flat Fold Design, Low Profile Design Reduces Eyewear Fogging", "asin": "B000TVSY9O", "delivery": " Overnight FREE delivery Overnight 4 AM - 8 AM"}]
<|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": "2025-04-22T21:12:47.627Z", // 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": "2025-04-22T21:11:59.196Z", "action": "input", "action_argument": "mask of n9s"}
{"timestamp": "2025-04-22T21:11:59.425Z", "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.
"promotion_items": [{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "price": "$14.99", "quantity": ""},
{"title": "50 Pack KN95 Face Masks - 5 Layer Protection Face Mask - Filtration>95% with Comfortable Elastic Ear Loop", "asin": "B09LC68X5G", "price": "$19.95", "quantity": ""},
{"title": "KN95 Face Masks 100 Pack, Breathable Comfortable Disposable Face Mask For Adults And Teens, Black", "asin": "B0D3PP7VK4", "price": "$26.99", "quantity": ""},
{"title": "NIOSH Certified MAKRITE 9500-N95 Pre-Formed Cone Particulate Respirator Mask, M/L Size (Pack of 20 Masks)", "asin": "B087D8W65K", "price": "$18.99", "quantity": ""},
{"title": "NIOSH Certified MAKRITE 9500-N95 Pre-Formed Cone Particulate Respirator Mask, M/L Size (Pack of 20 Masks)", "asin": "B087D8W65K", "price": "$18.99", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (10-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B08YS4958R", "price": "$14.99", "quantity": ""},
{"title": "Miuphro KN95 Disposable Face Mask 25 Pack 5-Ply Breathable Safety Masks Against PM2.5, Disposable Respirator Protection Mask for Men and Women Black", "asin": "B08NPR7WF2", "price": "$14.74", "quantity": ""},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "price": "$19.99", "quantity": ""},
{"title": "Miuphro KN95 Face Mask 50 Pack, Disposable Respirator Masks, 5 Layer Design Safety Mask for Protection, Ideal for Men and Women (White)", "asin": "B08NPKT21P", "price": "$19.74", "quantity": ""}],
"ads": [{"title": "LEVENIS KN95 Face Masks 50 Pack, Breathable Comfortable and Disposable KN95 Mask, Black", "asin": "B08VJM6VZC"},
{"title": "LEVENIS KN95 Face Masks 100 Pack, Breathable Comfortable and Disposable KN95 Mask, Black", "asin": "B09VYMDKPJ"},
{"title": "LEVENIS KN95 Face Masks 100 Pack, Breathable Comfortable and Disposable KN95 Mask, White", "asin": "B09VYL9Q8R"}],
"search_results": [{"title": "N95 Mask NIOSH Approved 25-Pack, Particulate Respirator N95 Face Masks Universal Fit - Individually Wrapped", "asin": "B09FZ7HVV9", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "KN95 Face Masks 100 Pack, Breathable Comfortable Disposable Face Mask For Adults And Teens, Black", "asin": "B0D3PP7VK4", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "3M Aura Particulate Respirator 9205+ N95, Lightweight, 3 Panel Designed Helps Provide Comfortable and Convenient Respiratory Protection, 3-Pack", "asin": "B095DZQ5MX", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Only 16 left in stock - order soon."},
{"title": "3M Aura Particulate N95 Respirator 9205+, Flat Fold Lightweight Design, Non-Valved, 20 Count (Pack of 1)", "asin": "B095FJ36H2", "delivery": " Overnight FREE delivery Overnight 4 AM - 8 AM"},
{"title": "BLScode KN95 Face Mask 60 Pack,Individually Wrapped 5-Layer face Masks,Filter Efficiency\u226595%", "asin": "B09FJT8R2G", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "KN95 Face Mask 50 PCS, Breathable Comfortable Masks, Against PM2.5 Disposable Masks", "asin": "B09NN8ZNP1", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Particulate Respirator 8511, Pack of 10, N95, NIOSH APPROVED, Cool Flow Exhalation Valve, Disposable, Braided Comfort Strap, M Noseclip, Personal Protective Equipment", "asin": "B07571J7V9", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "AccuMed BNX N95 Mask Black NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95B) Black", "asin": "B097HYFCN5", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "50 Pack KN95 Face Masks - 5 Layer Protection Face Mask - Filtration>95% with Comfortable Elastic Ear Loop", "asin": "B09LC68X5G", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask (20-Pack, Approval Number TC-84A-9315 / Model H95W) White", "asin": "B097G7LD9T", "delivery": " Two-Day FREE delivery Thu, Apr 24"},
{"title": "3M Aura Particulate Respirator 9205+ N95, Lightweight, Three Panel Designed Respirator Helps Provide Comfortable And Convenient Respiratory Protection, 10-Pack", "asin": "B095DVPTCT", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "Medtecs KN95 Face Masks Disposable - Individually Wrapped, 5 Ply Protection & Extra Wide Elastic Ear Loops Design, \u2267 95% Filtration Efficiency | Mask Extender included, 50 PC - Black", "asin": "B09SH3FF54", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "Honeywell Surgical N95 Respirator, Safety NIOSH-Approved, 20-pack (DC365N95HC)", "asin": "B096BGQ88W", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "G & F Products G & F 9118 Disposable Non-Toxic Dust and Filter Mask for cleaning, 50 Mask Value Pack (Pack of 3)", "asin": "B0DB8KMZ28", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "BNX N95 Mask NIOSH Certified MADE IN USA Face Mask, Tri-Fold Cup/Fish Style, 10,20,50-Pack - Black, White (Model F95B,F95W)", "asin": "B09KF545WW", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Aura Particulate Respirator 9211+, N95, Pack of 10 Disposable Respirators, Individually Wrapped, Cool Flow Valve, Flat Fold Design Allows for Facial Movement, NIOSH Approved, Comfort Plus, Dust", "asin": "B0CG2G99MJ", "delivery": " Overnight FREE delivery Overnight 4 AM - 8 AM"},
{"title": "AccuMed N95 Mask NIOSH Certified MADE IN USA Particulate Respirator Protective Face Mask, Tri-Fold Cup/Fish Style, (10-Pack, Approval Number TC-84A-9362 / Model F95W) White", "asin": "B094DYKP3S", "delivery": " One-Day FREE delivery Tomorrow, Apr 23"},
{"title": "3M Aura Particulate Respirator 9205+, N95, Pack of 440 Disposable Respirators, Individually Wrapped, 3 Panel Flat Fold Design Allows for Facial Movements, Comfortable, NIOSH Approved", "asin": "B08J1THV9G", "delivery": "FREE delivery Apr 28 - 30"},
{"title": "Face mask black disposable with breathing-valve 10 pack | black face masks for men and woman 5 layer | disposable face mask for protection | breathable sport face mask lightweight comfortable on skin", "asin": "B08L3YN8HT", "delivery": " One-Day FREE delivery Tomorrow, Apr 23 Or FREE delivery Overnight 4 AM - 8 AM on $25 of qualifying items"},
{"title": "3M Aura Particulate Respirator 9210+, N95, Pack of 20 Disposable Respirators, Convenient Individually Wrapped, NIOSH APPROVED, Stapled Flat Fold Design, Low Profile Design Reduces Eyewear Fogging", "asin": "B000TVSY9O", "delivery": " Overnight FREE delivery Overnight 4 AM - 8 AM"}]
<|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": "2025-04-22T21:12:47.627Z", // 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>
