Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.

Ex Input:
Fact: A compass is used to find magnetic north. 
Question: What does a compass find?

Ex Output:
magnetic north.


Ex Input:
Fact: all cells have cellular material inside the plasma membrane. 
Question: what has cellular material inside the plasma membrane?

Ex Output:
all cells.


Ex Input:
Fact: measuring the hardness of minerals requires chipping those materials. 
Question: Measuring the what of minerals requires chipping those materials?

Ex Output:

hardness.