Instruction: Rank the products A, B, C, ... based on their relevance to the provided query, and produce a ranked list with the most relevant product positioned at the top of the list.

Input:
Query: master lighting guide for portrait photographers
Product list:
A: Master Lighting Guide for Portrait Photographers
B: The Ultimate Guide to Digital Photography: Master your DSLR Camera and Learn the Art of Taking the Best Shots (Photography Life, Make it Easy Book 1)
Answer: A,B