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: ring guard gold
Product list:
A: Biddy Murphy Womens Celtic Knot Ring Sterling Silver Made in Ireland Size 9
B: NANA Rope Mothers Ring 1 to 10 Simulated Birthstones - Sterling Silver -Yellow Plated-Size 8.5
Answer: B,A