Instruction: Rank the products A, B, C, ... based on their relevance to the provided query, and produce a ranked list with the most relevant product positioned at the top of the list.

Input:
Query: kids playground
Product list:
A: Step2 Naturally Playful Woodland Climber II | Kids Activity Climber Outdoor Playset
B: Backyard Discovery Sweetwater All Cedar Wooden Playhouse
Answer: A,B