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

[EX Q]: Constructive interference is when two waves combine to create a larger wave.
[EX A]: What is it called when two waves combine to create a larger wave?

[EX Q]: Protist diseases in humans are caused by protozoa.
[EX A]: What type of diseases in humans are caused by protozoa?

[EX Q]: The parasympathetic system can also be referred to as the craniosacral system.
[EX A]:
The parasympathetic system can also be referred to as the what?