Task: Query_Product_Rank
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: heat recovery ventilator
Product list:
A: Tjernlund LB2 Dryer Duct Booster with Status Panel UL-705 Listed DEDPV
B: CADPXS DuraAir MFB Pro Crawlspace Ventilator Fan, Dual Fans Ventilator with dehumidistat Freeze Protection Thermostat,for Ventilated Crawl Spaces, 220 CFM (Air Out)
Answer: B,A