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

[Q]: Six many neutrons do 99% of carbon atoms have.
[A]: How many neutrons do 99% of carbon atoms have?


[Q]: Rod is the general shape of centrioles.
[A]: What is the general shape of centrioles?


[Q]: Neon has more electrons, neon or fluorine.
[A]:
Which has more electrons, neon or fluorine?