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: New York City Poster New York Poster Scenic Poster NYC Poster 27x40
Product description: New York City poster featuring the cityscape of New York City through an open window. Great New York City gift for people living in the big apple or fans of New York City, New York City Posters. Our New York posters are are printed by us on Canon IPF8400 wide-format printer that produces an amazing poster you will be proud to display. Larger sizes available.
Product feature: 27x40 for maximum effect, Made in the USA, Professional printing on premium poster paper, Same day or next day shipping on all orders (Exceptions apply), Unique New York City Poster
Product brand: New York City
Target attributes: Paint Medium
Answer: attribute: paint medium
value: None
source: None