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

Ex Input:
The long bone work as lever.

Ex Output:
What type of function does the long bone perform?

Ex Input:
Water contains 3 atoms.

Ex Output:
How many atoms does water contain?

Ex Input:
One many directions can ions flow along the axon.

Ex Output:
How many directions can ions flow along the axon?