Task: Query_Product_Rank
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: pool solar heater
Product list:
A: KOLERFLO 3/4 Inch Hot Water Circulating Pump 3-Speed Circulation Water Pump for Solar Heater System(RS15-6 Red)
B: CalPalmy Immersion Heater | Submersible Water Heating with Stainless-Steel Guard and Thermostat | Heats 5 Gallons of Water in Minutes | Great for Bathtub,Inflatable Pool - (FULLY IMMERSED WHILE USING)
C: 100W Solar Flood Light Outdoor Dusk to Dawn with Remote Control 324 LEDs 5000 Lumen Lamp for Yard, Swimming Pool, Garage, Warehouse, Playground, Hotel, Farm, Arena
Answer: A,B,C