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: Polaroid Sunglasses Women's PLD1009S Polarized Oval Sunglasses
Product feature: Imported, Plastic frame, Plastic lens, Polarized, 100% UV protection coating, Lens width: 56 millimeters, Bridge: 18 millimeters, Arm: 135 millimeters, Case Included, Lenses are prescription ready (Rx-able), You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition., Read the full returns policy, Go to Your Orders to start the return, Print the return shipping label, Ship it!, Product Dimensions: 0.4 x 0.4 x 0.4 inches, Shipping Weight: 3.52 ounces ( View shipping rates and policies ), ASIN: B00PBLLJX0, Item model number: Pld1009s, Date first listed on Amazon: December 26, 2014, Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues., International Shipping: This item is not eligible for international shipping. Learn More, Average Customer Review: 3.0 out of 5 stars 9 customer reviews
Product price: $61.50
Product brand: Polaroid Sunglasses
Target attributes: Silhouette
Answer: attribute: silhouette
value: oval
source: product title