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: phen
Product list:
A: PhenAprin Diet Pills  Appetite Suppressant: Weight Loss and Energy Boost for Metabolism  Optimal Fat Burner Supplement Helps Maintain and Curb Appetite, Promotes Mood & Brain Function
B: Source Naturals Diet-Phen with St. John's Wort, 180 Tablets
Answer: A,B