TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Activities that can reduce the effects of edema condition include exercises to keep the blood and lymph flowing through affected areas.

SOLUTION: Activities that can reduce the effects of what condition include exercises to keep the blood and lymph flowing through affected areas?

PROBLEM: Gardasil is the vaccine to prevent infection of hpv.

SOLUTION: What is the vaccine to prevent infection of hpv?

PROBLEM: Industry is the greatest source of hazardous waste.

SOLUTION:
What is greatest source of hazardous waste?