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: ladies watches on clearance prime under 20
Product list:
A: Timex Women's TW2R98700 Stretch Bangle Crisscross 25mm Silver-Tone Expansion Band Watch
B: U.S. Polo Assn. Women's Quartz Watch with Alloy Strap, Black, 17.6 (Model: USC40082)
Answer: B,A