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: African American Black Jazz Express Night Club Wall Picture 8x10 Art Print
Product description: A high-quality art print which represents the best of the worlds: quality and affordability.
Product feature: Brand New 8"x10" unframed art print, Printed on high-quality, lithograph art paper, Printing process produces a vivd and detailed picture, Suitable for any display - comes ready to frame or mat, Companion print: African American Black Jazz Works
Product price: $7.77
Product brand: Art Prints Inc
Target attributes: Print Medium
Answer: attribute: print medium
value: None
source: None