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: ultrasound medical
Product list:
A: Aquagel Lubricating Jelly 5 oz Tube - Parker Laboratories - (Pack of 2)
B: CONTEC CMS600P2 Vet Veterinary,Portable Laptop B-Ultrasound Scanner Machine for Horse/Equine/Sheep Big Animal Use Newest (Convex Probe)
Answer: B,A