Task: Query_Product_Rank
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: serpentine healing crystal
Product list:
A: DHAROHAR HANDICRAFT Healing Chakra Stones Crystal Decor Quartz Sphere, Reiki Energy Meditation Negative Ion Generator Sphere for Positive Energy (Serpentine 50-60 MM)
B: Past Life Exploration & Healing Tumbled Crystal Healing Set with Pouch & Description Card - Rhodonite, Rhyolite, Serpentine, and Unakite
Answer: A,B