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

Ex Input:
Hydras and sea anemones are examples of apolyp.

Ex Output:
Hydras and sea anemones are examples of what form?


Ex Input:
The term elastic potential energy is used to describe potential energy due to an object’s shape.

Ex Output:
What term is used to describe potential energy due to an object’s shape?


Ex Input:
Iron ions are critical for the formation of hemoglobin.

Ex Output:
What is critical for the formation of hemoglobin?