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

Example Input: Interstitial fluid are all hormones secreted into before entering the circulatory system.
Example Output: Where are all hormones secreted into before entering the circulatory system?

Example Input: Changing the shape of an elastic material gives it potential energy.
Example Output: Changing the shape of an elastic material gives it what type of energy?

Example Input: Scientists utilize imprinting natural process to teach cranes born in captivity to migrate along safe routes.
Example Output:
Scientists utilize what natural process to teach cranes born in captivity to migrate along safe routes?