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

Ex Input:
Dig a well allows people to access water in an aquifer that does not flow from a spring or a geyser.

Ex Output:
How can people access water in an aquifer that does not flow from a spring or a geyser?


Ex Input:
Through tubular ducts part do exocrine glands discharge their contents.

Ex Output:
Through what part do exocrine glands discharge their contents?


Ex Input:
An rna codon reading guu encodes for valine.

Ex Output:

An rna codon reading guu encodes for what?