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: black pillowcase
Product list:
A: Luxury Ultra-Soft 2-Piece Pillowcase Set 1500 Thread Count Egyptian Quality Microfiber - Double Brushed - - Wrinkle Resistant, Standard Size, Black
B: Cosy House Collection Luxury Bamboo Standard Size Pillowcases - Black Pillowcase Set of 2 - Ultra Soft & Cool Natural Bamboo Blend Cover - Resists Stains& Wrinkles
Answer: A,B