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.

Input: Consider Input: Fact: Mineral graphite can pierce the skin surface. 
Question: What can pierce the skin surface?

Output: Mineral graphite.


Input: Consider Input: Fact: seismographs measure strength. 
Question: What does a seismometer measure?

Output: waves.


Input: Consider Input: Fact: Keeping food cold is used to keep food simple and natural as possible. 
Question: What is used to keep foods as simple and as natural as possible?


Output: cold.