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: 3 inch backdraft damper
Product list:
A: Lambro 1475W White Plastic Louvered Vent, 3-Inch
B: Labconco 3858800 Backdraft Damper, 3" Height, 10" OD Inlet, 10" OD Outlet
Answer: B,A