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

Ex Input:
Control rods play an important role in the modulation of the nuclear chain reaction.

Ex Output:
What play an important role in the modulation of the nuclear chain reaction?


Ex Input:
Protist diseases in humans are caused by protozoa.

Ex Output:
What type of diseases in humans are caused by protozoa?


Ex Input:
Uranium is an important part of the process that is used to harness nuclear power.

Ex Output:
Uranium is an important part of the process used to harness which type of power?