instruction:
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
question:
Water contains 3 atoms.
answer:
How many atoms does water contain?


question:
The cardiovascular system in the human body consists of the heart, a network of blood vessels, and blood.
answer:
Which system in the human body consists of the heart, a network of blood vessels, and blood?


question:
Vaccination can protect even young children against diseases such as viral meningitis.
answer:

What preventive measure can protect even young children against diseases such as viral meningitis?