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

Example Input: Particle accelerators can nuclear fusion in stars be simulated.
Example Output: How can nuclear fusion in stars be simulated?

Example Input: Humans have 23 pairs pairs of chromosomes.
Example Output: How many pairs of chromosomes do human have ?

Example Input: Resistance is lowered when salts go into ion form.
Example Output:
What is lowered when salts go into ion form?