Instruction: Evaluate each product title in the given list, assess its relevance to the given query, and then arrange the products in descending order of relevance, with the most relevant product at the top of the ranked list.

Input:
Query: leaf guard
Product list:
A: GutterBrush Gutter Guard for 5 Inch Gutters (4.25 in. Dia.) 60 Ft. | Leaf Filter Brush | Made in USA | Easiest No Tools Installation
B: Smart Screen GPS401 Gutter Protection Covers, Aluminum, 5" x 4' (Pack of 5)
Answer: A,B