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: Vans Disney Slip-On mens skateboarding-shoes VN-00MEGHI_8 - Minnie Mouse/classic white
Product feature: Package Dimensions: 12.2 x 5.5 x 4.7 inches, Shipping Weight: 1.95 pounds, ASIN: B00RPRCJXM, Item model number: V0MEGHI, Date first listed on Amazon: January 22, 2016, Average Customer Review: 3.0 out of 5 stars 1 customer review
Product brand: Vans
Target attributes: Style
Answer: attribute: style
value: vans
source: product title
attribute: style
value: vans
source: product brand