Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Smile Case Hello Kitty Colorful Back Cover Case for iPod Touch 4 4G iTouch 4 4G (it4-Apple)
Product description: Easy access to all buttons, sensors, and ports Full access to user interface, camera lens, headphone jack, speakerphone and microphone Allows charging without removing the case Compatible with Apple iPod Touch 4th Generation Models
Product feature: Made of Hard Plastic, Lightweight, durable material, low-profile construction protect your device from scratches and bumps without adding bulk, Form-fitting case designed to perfectly fit your device, Open front design for optimal access to the touch screen, Easy to snap on your device, yet stays on securely
Product brand: Smile Case
Target attributes: Compatibility
Answer: attribute: compatibility
value: for ipod
source: product title
attribute: compatibility
value: ipod
source: product description