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: little tykes 3 in 1 activity walker
Product list:
A: Fisher-Price 2-in-1 Sit-to-stand Activity Center, Assorted
B: Little Tikes Light 'n Go - 3-in-1 Activity Walker
Answer: B,A