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: 18 ft pool heater
Product list:
A: in The Swim 18 Foot Round Basic Pool Solar Blanket Cover 8 Mil
B: VEVOR Electric Pool Heater 11KW 240V Swimming Pool Electric Heater Water Bath Heater Electric Digital fit for Thermostat, fit for Max 1981 Gallon Pool Equipment,Note:You Must Wire This Item Yourself
C: VINGLI Pool Cover Reel Set 18 Feet Pool Solar Cover Reel for Inground Swimming Pool, Aluminum Solar Swimming Inground Cover Blanket Reel (Upgrade)
Answer: B,C,A