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

Example Input: Some plants have stolons, or stems, that run along the ground and are commonly called runners.
Example Output: Some plants have stolons, or stems, that run along the ground and are commonly called what?

Example Input: A diet rich in calcium and vitamin d may reduce the risk of osteoporosis and related bone fractures.
Example Output: A diet rich in calcium and what vitamin may reduce the risk of osteoporosis and related bone fractures?

Example Input: Impulse is the quantity of force multiplied by the time it is applied.
Example Output:
What is the quantity of force multiplied by the time it is applied called?