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: Wenger Bison Genuine Leather Slimfold Bifold Billfold Mens Wallet (Black)
Product feature: Item No: 12470, Dimensions: 4.25 x 3.25; 11cm x 8cm, Color: Black, Three card slots, bill compartment and ID holder, Genuine leather, Package Dimensions: 5.8 x 4.7 x 1.6 inches, Shipping Weight: 4.8 ounces, ASIN: B00E2YJGXM, Item model number: 12470, Date first listed on Amazon: July 21, 2013, Average Customer Review: 4.1 out of 5 stars 3 customer reviews
Product brand: Wenger
Target attributes: Type
Answer: attribute: type
value: wallet
source: product title