Instruction: Extract the value of the target attribute from the given product information and output it along with the corresponding source.

Input:
Product title: Gucci Men's Leather Blue Flip Flops Shoes
Product description: Gucci Men's Leather Blue Flip Flops Shoes.These shoes come with original box and dust box. SKU: AZ-G-525.Material: Leather.Model: 268670 A4H00 4232.
Product feature: Leather / Canvas, ASIN: B01ATPUAV4, Date first listed on Amazon: January 19, 2016, Average Customer Review: 5.0 out of 5 stars 1 customer review
Product brand: Gucci
Target attributes: Pattern
Answer: attribute: pattern
value: None
source: None