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

Ex Input:
Hookworms infest the intestines.

Ex Output:
What part of the body do hookworms infest?

Ex Input:
Momentum is directly related to both mass and velocity.

Ex Output:
Momentum is directly related to both mass and?

Ex Input:
Fraternal, non-identical are two other terms for dizygotic twins, which make good study subjects because they share many environmental conditions, but only about half of their polymorphisms.

Ex Output:
What are two other terms for dizygotic twins, which make good study subjects because they share many environmental conditions, but only about half of their polymorphisms?