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

[Q]: Cells have four cycles.
[A]: How many cycles do cells have?

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

[Q]: A flower's colors come from vacuole part of the plant.
[A]:
A flower's colors come from what part of the plant?