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: lobby chairs without arms
Product list:
A: Boss Office Products B1615-BK Ergonomic Works Drafting Chair Without Arms, Black, Mid-Back
B: Giantex Set of 5 Conference Chair Elegant Design Stackable Office Waiting Room Guest Reception (31.5 H)
Answer: B,A