Instruction: Evaluate the relevance of each product title in the input to the given query, and then sort the products in descending order of relevance, placing the most relevant product at the top of the ranked list.

Input:
Query: 100% leather couch
Product list:
A: Lifestyle Solutions HRFKS3BK Grayson Sofa, 78.7" W x 31.5" D x 32.7" H, Black
B: Ameritex Couch Sofa Slipcover 100% Waterproof Nonslip Quilted Furniture Protector Slipcover for Dogs, Children, Pets Sofa Slipcover Machine Washable (Blue, 78")
C: Linenspa 6 Inch Spring Mattress, Twin, White
Answer: A,B,C