Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Ex Input:
Changing the shape of an elastic material gives it potential energy.

Ex Output:
Changing the shape of an elastic material gives it what type of energy?


Ex Input:
Limestone is insoluble in water, so acid can dissolve it.

Ex Output:
Limestone is insoluble in water, so what can dissolve it?


Ex Input:
Pathogens spread(s) stis during sexual contact.

Ex Output:

What spreads sti during sexual contact?