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: Gedy 3870-13 Towel Ring, 1.15" L x 7.87" W, Chrome
Product description: Polished Chrome square shaped towel ring with rounded edges. Modern and decorative design. Made in Italy.
Product feature: Towel ring; bathroom Accessories, Made of chromed brass, From the Gedy Kansas collection
Product price: $76.59
Product brand: Gedy
Target attributes: Style
Answer: attribute: style
value: ring
source: product feature
attribute: style
value: towel ring
source: product description
attribute: style
value: towel ring
source: product title
attribute: style
value: towel ring
source: product feature
attribute: style
value: ring
source: product description