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: foldable ergonomic chair
Product list:
A: Ultra-Large Adjustable Laptop Stand, Portable Laptop Table with Big Movable CPU Cooling Fan for 17 Inch Computer, Foldable Ergonomic Tray Holder for Bed, Sofa, Chair, Floor (Tray Size: 19", Silver)
B: Ergonomic Kneeling Chair, Adjustable Stool for Home and Office - Improve Your Posture with an Angled Seat - Thick Comfortable Moulded Foam Cushions - Brake Casters
Answer: B,A