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: Hennessy Medium Leather Dog Collar, White with Black
Product description: 12-14-1/2-Inch medium white perforated leather hand made dog collar with black edge and stitching
Product feature: Leather is tanned eco-logically, Metal components are 316L quality stainless steel, Stainless steel tag can be engraved, Matching 4-foot leash is available, 2-Percent of Hennessy & Sons annual turnover is donated to the International Animal Rescue Foundation
Product brand: Hennessy & Sons
Target attributes: Type
Answer: attribute: type
value: collar
source: product description
attribute: type
value: collar
source: product title