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: magnetism can cause objects to repel each other

Ex Output:
What can cause objects to repel each other?


Ex Input:
Fact: water vapor condensing in clouds causes rain

Ex Output:
Water vapor condensing in clouds may cause?


Ex Input:
Fact: Matter in the liquid phase has variable shape

Ex Output:

matter in the liquid phase has what shape?