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: Air Balance Infants Brown/Pink Fashion Sneakers
Product description: Fashion Sneakers
Product feature: Synthetic, Rubber sole, Low Top Fashion, Brand new in box, Made In China, Package Dimensions: 7.4 x 6 x 3.3 inches, Shipping Weight: 9.6 ounces, ASIN: B00MYGTPWW, Item model number: AB3925IBNPNK-5, Date first listed on Amazon: August 22, 2014, Average Customer Review: 4.0 out of 5 stars 2 customer reviews
Product brand: Air Balance
Target attributes: Style
Answer: attribute: style
value: fashion sneakers
source: product description
attribute: style
value: fashion sneakers
source: product title