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

Ex Input:
The brain is the most complex organ in the human body.

Ex Output:
What is the most complex organ in the human body?


Ex Input:
Based on the passage, they may represent individual people is one conclusion archaeologists have reached about the statues.

Ex Output:
Based on the passage, what is one conclusion archaeologists have reached about the statues?


Ex Input:
Mollusks can be divided into seven classes.

Ex Output:

Mollusks can be divided into how many classes?