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: echo battery chainsaw
Product list:
A: ECHO ZRCBP-58V2AH 58-Volt Lithium-Ion 2AH Battery (Renewed)
B: Echo Chain Saw CS352 16in
Answer: B,A