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: smithsonian stem
Product list:
A: Smithsonian Science Activities Rocket Science Kit
B: Horizon Group USA Discovery Touch & Sound Activated Plasma Globe, Stem Science, Interactive Electronic Touch & Sound Sensitive Desk Lamp, Assorted Color (84434G)
Answer: A,B