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: Perris Leathers Pet Collar with Hi-res Imaging, Black Skulls on White
Product description: Distinctive, Hi-quality Pet Collars by Perri's Leathers
Product feature: Superior Quality, Distinctive Designs, Popular Sizes, Highly Durable, Stylish and Functional
Product price: $15.10
Product brand: Perris Leathers
Target attributes: Collar Type
Answer: attribute: collar type
value: None
source: None