Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Yahtzee Elvis (Can)
Product description: Elvis has left the building-Elvis has entered your home! It's Elvis Collector's Edition Yahtzee-shake, rattle, and roll your way into high-scoring Yahtzee entertainment. This collector's edition is a must-have for fans of the King! Replacing numbers with silhouettes and symbols reminiscent of Elvis, the same rules and game play of regular Yahtzee apply., Play america's all-time #1 dice game and find the true meaning of the holiday season with this special elvis collector's edition of the yahtzee game. Yahtzee elvis (can). Fans everywhere can be all shook up with elvis fun. Play americas all-time #1 dice game.
Product feature: Yahtzee elvis (can), Fans everywhere can be all shook up with elvis fun, Play americas all-time #1 dice game, Pencil, Recommended Age Range 8 and up
Product price: $49.95
Product brand: USAopoly
Target attributes: Maximum Players
Answer: attribute: maximum players
value: None
source: None