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: battery operated cat water dispenser
Product list:
A: PETKIT Cat Dog Water Fountain Stainless Steel, Ultra-Quiet Pet Water Fountain for Cats Dogs, Automatic Cat Dog Water Dispenser with Burnout Prevention Pump, Smart LED Light, Dual Working Mode
B: Cat Water Fountain,2021 Upgraded Pet Water Fountain 101oz/3L Automatic Dog Cat Water Dispenser Ultra Quiet Cat Drinking Fountains with 2 Quadruple Filtration Filters & 3 Water Flow Settings
Answer: A,B