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: Marilyn Monroe, Back Stage Framed Art Print by Sam Shaw 21 x 18in
Product description: This framed art print features a frame and mat combination individually selected by professional designers to perfectly complement your art. The art print, which displays sharp, vivid images and a high degree of color accuracy, is protected and enhanced by this frame that has been handcrafted in the USA from the finest materials.
Product feature: Print Title: Marilyn Monroe, Back Stage, Artist: Sam Shaw, Size: 21 x 18 inches, Brighten up any space with high quality framed and ready to hang framed art print. Produced on medium weight cover stock, this art reproduction is coated with a silken finish that protects the inks and creates an elegant look.
Product brand: Poster Revolution
Target attributes: Type
Answer: attribute: type
value: print
source: product title
attribute: type
value: print
source: product description
attribute: type
value: print
source: product feature