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: camera pens with audio video
Product list:
A: Hidden Spy Pen Camera HD 1080P Portable Digital Video Recorder with Photo Taking, USB Port Covert Cam, Mini DV Cam Multifunction Ink Pen Camcorder for Conference and Education(with 16 GB Memory Card)
B: INJATek 32GB Spy Camera Pen WiFi HD 1080P Mini DVR, with Real Time Video Recording Function and 5 Ink Refills(P7)
Answer: A,B