Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.

Input: Consider Input: Fact: birds are a vehicle for spreading the seeds of a plant

Output: Birds are a vehicle for spreading the seeds of what?


Input: Consider Input: Fact: a cavern is formed by carbonic acid in groundwater seeping through rock and dissolving limestone

Output: Kool-aid is a mix of what items as a solution?


Input: Consider Input: Fact: decomposition is when a decomposer breaks down dead organisms


Output: Flowers start die when?