instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Combustion reaction occurs when a substance reacts quickly with oxygen.
answer:
What occurs when a substance reacts quickly with oxygen?


question:
Southern asia does the most important monsoon in the world occur.
answer:
Where does the most important monsoon in the world occur?


question:
Mimivirus is the largest known virus.
answer:

What is the largest known virus?