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: plants are a source of oxygen through photosynthesis

Ex Output:
Chloroplasts in shrubs scrub carbon from the air and return?


Ex Input:
Fact: some birds live in forests

Ex Output:
Some birds live in?


Ex Input:
Fact: an earthquake causes the ground to shake

Ex Output:

an earthquake causes the ground to?