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

[Q]: Carried through body happens if cancer cells enter the blood stream.
[A]: What happens if cancer cells enter the blood stream?


[Q]: Does water get colder or warmer the deeper you go?
[A]: Does water get colder or warmer the deeper you go?


[Q]: Neutrons are electrically neutral.
[A]:
What part of an atom is electrically neutral?