Instruction: Evaluate the relevance of each product title in the input to the given query, and then sort the products in descending order of relevance, placing the most relevant product at the top of the ranked list.

Input:
Query: teton hydration backpack
Product list:
A: Hydration Pack Backpack - Water Stays Cool 5 Hours with 2L Hydration Bladder and Cooler Bag | Fully Adjustable, Multiple Pockets | 10L Overall Storage Capacity | Hiking, Running, Cycling, MTB
B: TETON Sports Scout 3400 Internal Frame Backpack; High-Performance Backpack for Backpacking, Hiking, Camping; Mecca Orange
Answer: B,A