Instruction: Analyze the query and each product title. Sort the products in descending order based on their relevance to the query. The most relevant product should be at the top of the list, and output the ranked list.

Input:
Query: sex without stress
Product list:
A: Erectile Dysfunction: Say Goodbye to Constantly Stimulating to Stay Hard.: Discover How to Keep a Rock Hard Erection without the Fear of Going Limp
B: Sex Guide for Couples: Achieve Perfect Intimacy through Ancient Tantric Techniques, Massages and Kama Sutra Sex Positions. A Beginners Guide with Secret Tips for Men and Women - 2 Manuscripts
C: Preparing for the Perimenopause and Menopause
Answer: B,A,C