Instruction: Given a query and a list of products denoted as A, B, C, ... with their titles, rank the products according to their relevance to the query. Output only a ranked list in which the most relevant product is at the top of the list.

Input:
Query: water heater electric timer
Product list:
A: INTERMATIC Electronic Water Heater Timer, 30 Amps, 240VAC Voltage, Number of Channels: 1
B: Watts Premier Instant Hot Water Recirculating Pump System with Built-In Timer 6" X 6"
C: Gesail 1500W Electric Immersion Heater, UL-Listed Bucket Water Heater with 304 Stainless-Steel Guard, Submersible Bucket Heater with Thermostat and Auto Shutoff, Heats 5 Gallons Water in Minutes
Answer: A,B,C