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: big and tall office chair 500lbs cheap desk chair
Product list:
A: Flash Furniture Big & Tall Office Chair | Black Leather Swivel Executive Desk Chair with Wheels
B: Flash Furniture HERCULES Series 24/7 Intensive Use Big & Tall 500 lb. Rated Black Mesh Executive Ergonomic Office Chair with Ratchet Back
Answer: B,A