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.

Ex Input:
Fact: planting native plants has a positive impact on an ecosystem

Ex Output:
local plant varieties are the best for improving the local?


Ex Input:
Fact: stopped means no speed

Ex Output:
An object that is stopped is?


Ex Input:
Fact: a complete electrical circuit is a source of electrical energy

Ex Output:

Which is a complete circuit?