Instruction: First, identify the target attributes from the provided list. Then, scan the product title, description, feature, and brand to extract the values associated with each target attribute. Finally, create a list of dictionaries, each containing the extracted attribute, its corresponding value, and the source where it was found.

Input:
Product title: Skyrim - Dark Brotherhood - New Official Mug
Product description: Skyrim - Dark Brotherhood - New Official Mug. Ceramic Coffee Mug. Official Merchandise. FREE SHIPPING
Product feature: Ceramic Coffee Mug, Dishwasher and Microwave safe, Official Merchandise, FREE SHIPPING
Product brand: NNG
Target attributes: Material
Answer: attribute: material
value: ceramic
source: product feature
attribute: material
value: ceramic
source: product description