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: SODA LOANNA Lace Up Leatherette Plaid Fold Over Sweater Cuff Combat Military Bootie - Tan PU
Product description: Cozy up to these adorable combat boots, with plaid and sweater details for a darling and daring look! Featuring a round toe, toe cap stitching, lace-up, sweater wool knit, plaid checkered fold-down, and trekking sole military combat bootie.
Product feature: wool, sweater knitted, Heel measures approximately 1.5 inches", material: polyurethane, sweater wool, heel measures approx. 1.5"; shaft approx. 6" including heel, non-skid sole and cushioned foot bed, actual color may vary slightly due to computer display settings, Shipping Weight: 3 pounds, ASIN: B014RQCA8W, Date first listed on Amazon: February 5, 2016, Average Customer Review: 5.0 out of 5 stars 1 customer review
Product brand: Soda
Target attributes: Pattern
Answer: attribute: pattern
value: plaid
source: product description
attribute: pattern
value: plaid
source: product title