Instruction: Given the title, description, feature, price, and brand of a product and a set of target attributes, extract the value of each target attribute from the product information. Output the extracted value and the corresponding source (e.g., title or feature) denoting where the value is extracted.

Input:
Product title: Polara Golf XDS Extra Distance & Spin 3-Piece Golf Balls (12 Balls)
Product description: Improving your game and making golf fun again is the Polara way. Thanks to its unique dimple design, the Polara 3-piece Ultimate Straight XS golf ball reduces those dreaded hooks and slices by up to 75%. Maximum spin control around the greens. Each box contains 12 golf balls.
Product feature: The Polara XDS 3-pc corrects hooks and slices by up to 50% and gives you extra distance, Point the arrow at your target for maximum effect, Golf ball is designed for recreational golfers, Added spin control around the greens, 30 day money back guarantee
Product brand: Polara
Target attributes: Cover
Answer: attribute: cover
value: None
source: None