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: Park B Smith Banyon Meadowood Celadon 14"x60" Rod Pocket Valance
Product description: Made of 100% cotton this linen like stripe valance will add a new look to your decor. 14" Rod pocket panel. 60 x 14". Dry clean.
Product feature: 100% Cotton, Meadowood / Celadon, 100% Cotton
Product price: $15.99
Product brand: Park B. Smith
Target attributes: Valance Style
Answer: attribute: valance style
value: rod pocket
source: product description
attribute: valance style
value: rod pocket
source: product title