Instruction: Rank the products A, B, C, ... based on their relevance to the provided query, and produce a ranked list with the most relevant product positioned at the top of the list.

Input:
Query: nutone thermostat
Product list:
A: Broan-NuTone 688 Ceiling and Wall Ventilation Fan, 50 CFM 4.0 Sones, White
B: Nutone RFTH95 Attic Ventilator Replacement Thermostat, Automatic
Answer: B,A