Instruction: Evaluate each product title in the given list, assess its relevance to the given query, and then arrange the products in descending order of relevance, with the most relevant product at the top of the ranked list.

Input:
Query: aquarium heater 10 gallon
Product list:
A: Orlushy Mini Aquarium Heater 50W,Small Fish Tank Heaters with LED Digital Temperature Display and External Temperature Controller for Betta Frogs Newts Turtles (50W)
B: Hitop 50W/100W/300W Adjustable Aquarium Heater, Submersible Glass Water Heater for 5  70 Gallon Fish Tank (50W for 5-20 Gallon)
Answer: B,A