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

Ex Input:
Starches are complex carbohydrates that are the polymers of glucose.

Ex Output:
What complex carbohydrates are the polymers of glucose?

Ex Input:
The sun delivers power to the chemical factory chloroplasts.

Ex Output:
What delivers power to the chemical factory chloroplasts?

Ex Input:
Some materials have negative heats of solution; the dissolution of one of these solutes in water is called?

Ex Output:
Some materials have negative heats of solution; the dissolution of one of these solutes in water is called?