Instruction: Parse the product information to locate the target attribute, and then provide the extracted value of the target attribute and its source in the output, specifying None if the attribute is not present.

Input:
Product title: GameWear 7731400722 Boston Red Sox Blue Team Color Baseball Bracelet
Product description: Show off your team pride with these officially licensed, genuine leather bracelets. These are handmade with love by Gamewear.
Product feature: Leather 95% / Cotton 5%, Imported, Genuine leather, Made by Gamewear, Great stocking stuffer, Made from real baseball stitches and authentic baseball leather, One-size-fits-all, Unique elastic baseball bead closure, Raised stitches give the real feel of a baseball
Product brand: GameWear
Target attributes: Silhouette
Answer: attribute: silhouette
value: None
source: None