TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Healthy lungs is necessary in a person who wishes to play wind instruments.

SOLUTION: What is necessary in a person who wishes to play wind instruments?

PROBLEM: Some meteorites are made of iron and nickel and are thought to be very similar to the core of the earth.

SOLUTION: Some meteorites are made of iron and nickel and are thought to be very similar to what part of the earth?

PROBLEM: How much is involved in the reaction does the coefficient in front of an element in a formula indicate.

SOLUTION:
What does the coefficient in front of an element in a formula indicate?