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: stillness is the key
Product list:
A: Stillness Is the Key
B: Tribe of Mentors: Short Life Advice from the Best in the World
Answer: A,B