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: Nick Jonas Custom Poster Prints Wall Art Home Bathroom Decor 20x30 Inch
Product feature: ASIN: B017DAP17Q, Date first listed on Amazon: October 30, 2015, Average Customer Review: 3.0 out of 5 stars 2 customer reviews
Product brand: LiangZP
Target attributes: Paint Medium
Answer: attribute: paint medium
value: None
source: None