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

Ex Input:
Water contains 3 atoms.

Ex Output:
How many atoms does water contain?


Ex Input:
Gabbro is a dark dense rock that can be found in the oceanic crust.

Ex Output:
Gabbro is a dark dense rock that can be found in what?


Ex Input:
Five many types of basic sensory receptors are there.

Ex Output:
How many types of basic sensory receptors are there?