instruction:
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.
question:
Fact: Genes are a part of coiled structures made of DNA and proteins. 
Question: What are a part of coiled structures made of DNA and proteins?
answer:
genes.


question:
Fact: a flashlight requires a source of energy to produce light. 
Question: What requires a source of energy to produce light?
answer:
flashlights.


question:
Fact: boiling means change from water into a gas by adding heat energy. 
Question: What changes water into a gas by adding heat energy?
answer:

boiling.