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

Ex Input:
Molar masses can be used to determine the mass of a quantity of material.

Ex Output:
What can be used to determine the mass of a quantity of material?


Ex Input:
Rod is the general shape of centrioles.

Ex Output:
What is the general shape of centrioles?


Ex Input:
Carbon atoms have six protons and electrons each.

Ex Output:

How many protons and electrons each do carbon atoms have?