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: Tokidoki Japanese Sometimes Flat Bill Snapback Brand Clothing Grey Characters
Product feature: 100% Cotton, One Size Fits Most, Embroidered Image, Shipping Weight: 1 pounds, ASIN: B00OYEB0MK, Item model number: BRAND1516, Date first listed on Amazon: October 27, 2014, Average Customer Review: 4.5 out of 5 stars 2 customer reviews
Target attributes: Pattern
Answer: attribute: pattern
value: None
source: None