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

[Q]: The frequency of a wave is the reciprocal of the period of the wave.
[A]: The frequency of a wave is the reciprocal of what other attribute of the wave?


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


[Q]: The triceps help the body extend the arm.
[A]:
What bodily function do the triceps help perform?