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: 4" elbow duct
Product list:
A: Deflecto Dryer Offset Connector, 4" Diameter, Silver (AMDOC/6)
B: Easy Turn Thumb Screw Metal Clamp, Adjustable 3-4 1/2 Diameter, Ideal For Dryer and Plastic Vent Ducts, 2 Pack (Easy Turn Clamp)
Answer: A,B