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: fat is used to keep animals warm

Ex Output:
A bear's blubber?


Ex Input:
Fact: detailed observation of celestial objects requires a telescope

Ex Output:
A telescope is required for detailed observation of what?


Ex Input:
Fact: as the amount of food an animal eats decreases , that organism will become thinner

Ex Output:

What shows that as the amount of food an animal eats decreases , that organism will become thinner?