Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: Wilton Green Cookie Icing, 9 oz.
Product description: This quick-setting, microwavable cookie icing by Wilton is the perfect option for decorating sugar cookies or any other roll-out type of cookie. It's so easy to use, just heat, squeeze using the convenient cap and let your creativity run wild.
Product feature: Easy-to-use icing made specifically for cookies, Use a spatula to ice cookies completely or create more intricate designs using bottle tip; sets smooth in 1 hour, Color: Green, Net Weight: 9 oz. (255 g), Made in a facility that also processes egg, milk, soy and wheat products
Product price: $4.00
Product brand: Wilton
Target attributes: Fat Content
Answer: attribute: fat content
value: None
source: None