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: Universal Textiles Womens/Ladies Full Length Yoga Pants/Trousers
Product description: Womens yoga pants in full length. Choice of 3 sizes. Choice of 3 colors. Waistband can be rolled down or pulled up for extra comfort. 80% Polyester, 20% Spandex. Machine wash at 30.
Product feature: Polyester, Spandex,, Womens yoga pants in full length., Choice of 3 sizes., Choice of 3 colors., Waistband can be rolled down or pulled up for extra comfort., 80% Polyester, 20% Spandex., Shipping Information: View shipping rates and policies, ASIN: B00XV9QESE, Date first listed on Amazon: December 24, 2018, Average Customer Review: 3.9 out of 5 stars 2 customer reviews
Product brand: Universal Textiles
Target attributes: Pattern
Answer: attribute: pattern
value: None
source: None