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: bird sounds book
Product list:
A: Bird Songs: 250 North American Birds in Song
B: Bird Calls (Hear and There Books)
Answer: A,B