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: Hungry Jack Complete Wheat Blends Pancake & Waffle Mix 28-oz.
Product description: Start your day the hearty and delicious way with 16 grams or more of whole grains per serving. And its a good source of calcium and six vitamins plus iron.
Product feature: 16g or more whole grains per serving, Just add water
Product brand: Hungry Jack
Target attributes: Fat Content
Answer: attribute: fat content
value: None
source: None