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: Elmer's Friends Board Book (Elmer Books)
Product description: PreS?These books feature a colorful patchwork elephant in their title subjects. Elmer's winsome personality shines through as he romps with a variety of wild animals from all over the world?polar bears and leopards, elephants and kangaroos?in this jungle fantasyland. Elmer's Friends, the most sophisticated of the four, leaves readers with the message that we can be different and still get along. The other texts are fairly generic, according to the concept depicted; most of the illustrations, done in bold, textured paints, are appealing and will encourage responses from toddlers. Solid choices for the board-book set.?Linda Wicher, Highland Park Public Library, IL Copyright 1995 Reed Business Information, Inc., David McKee grew up in Devon, England. Later, while a student at Plymouth Art College, he began selling his cartoon drawings to newspapers. Since 1964 he has published a number of successful books for children, including the King Rollo stories, which he helped animate for British television. His first book for Lothrop was Snow Woman, of which Publishers Weekly said, "It is McKee's superb humor--conveyed almost solely in the illustrations...that wins the day." Of his second Lothrop book, Who's a Clever Baby, Publishers Weekly had this to say: "Grandma's alliterative frenzies are fascinating and readers will find Baby's manipulative stubbornness vastly amusing.", Mr. McKee enjoys traveling and doing books that "leave things unsaid."
Product brand: Visit Amazon's David McKee Page
Target attributes: Format
Answer: attribute: format
value: board book
source: product title