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: unbleached pastry flour
Product list:
A: Bob's Red Mill Pastry Flour Whole Wheat - 5 lb
B: King Arthur Flour Special Patent Flour - 50 Pounds
Answer: A,B