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

[Q]: Activities that can reduce the effects of edema condition include exercises to keep the blood and lymph flowing through affected areas.
[A]: Activities that can reduce the effects of what condition include exercises to keep the blood and lymph flowing through affected areas?


[Q]: Starches are complex carbohydrates that are the polymers of glucose.
[A]: What complex carbohydrates are the polymers of glucose?


[Q]: Fermat’s principle states that light will always take the path of the least amount of time.
[A]:
Fermat’s principle states that light will always take the path of least amount of?