Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.

Example Input: Fact: as lightness in color of an object increases , the ability of that object to reflect light will increase
Example Output: What impacts an objects ability to reflect light?

Example Input: Fact: a valley is formed by a river flowing
Example Output: In what way are valleys formed?

Example Input: Fact: refraction is when light bends
Example Output:
refraction is when light bends and when it stops producing light after hitting something its its?