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: cat hamster wheel
Product list:
A: GoPet Treadwheel for Small Dogs
B: U-pet Bubble Pet Travel Backpack Carriers Green
Answer: A,B