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: Art, Peace, and Transcendence: Rograms That Elevate and Unite
Product description: "R offers the reader a collection of images that simultaneously consider the scientific, religious, and mathematical forces that produce our universe, our world, and our inner life." -- Journal of the Print World, "The images [in Art, Peace, and Transcendence ] delight. They swoop and spin, slink and sway, as if they were shifting on the page in the very moment of viewing." -- Albuquerque Journal, Paul R , a Caltech alumnus, has been acclaimed as "a virtuoso of the pencil" for his art of "quiet greatness and noble simplicity." His artwork has been shown in twenty-two solo exhibits in thirteen states, including the traveling exhibition Touchable Art for the Blind and Sighted . He is the founder of the Paul Bartlett R Peace Prize, administered by the University of New Mexico Foundation, and author of The Dance of the Pencil: Serene Art by Paul R .
Product price: $29.09
Product brand: Paul R
Target attributes: Page Count
Answer: attribute: page count
value: None
source: None