Instruction: Analyze the query and each product title. Sort the products in descending order based on their relevance to the query. The most relevant product should be at the top of the list, and output the ranked list.

Input:
Query: mckesson walker with wheels
Product list:
A: Healthcare Direct Steel Rollator Walker with 350 lb. Weight Capacity, Burgundy
B: McKesson Universal Walker Wheels with Rear Glides
Answer: A,B