Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: I Play Playball! Card Game by International Playthings
Product description: Card game for 2 Players.
Product feature: 44 playing cards, 6 team "hats", 2 "bat" markers for scoring, Trophy card and spinner, Ages 5 and up
Product price: $13.95
Product brand: International Playthings
Target attributes: Maximum Players
Answer: attribute: maximum players
value: for 2 players
source: product description