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

Example Input: The brain is the most complex organ in the human body.
Example Output: What is the most complex organ in the human body?

Example Input: The thalamus helps to regulate consciousness, arousal, and sleep states.
Example Output: What helps to regulate consciousness, arousal, and sleep states?

Example Input: If solutions of differing osmolarities are present on opposite sides of a semipermeable membrane, solvent will transfer from low to high to what, in terms of osmolarity of the solution.
Example Output:
If solutions of differing osmolarities are present on opposite sides of a semipermeable membrane, solvent will transfer from what to what, in terms of osmolarity of the solution?