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

Ex Input:
All of the populations that live in the same area make up a(n) community, which includes populations of different organisms.

Ex Output:
All of the populations that live in the same area make up what type of group, which includes populations of different organisms?


Ex Input:
The male reproductive system consists of structures that produce sperm and secrete testosterone.

Ex Output:
What does the male reproductive system consist of?


Ex Input:
Similarity of crystal structures is used to categorize minerals non-living materials.

Ex Output:

Similarity of crystal structures is used to categorize what non-living materials?