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: blood traveling to the heart is deoxygenated. 
Question: Blood traveling to the heart is?
answer:
deoxygenated.


question:
Fact: honey causes food to taste sweet. 
Question: what causes food to taste sweet?
answer:
honey.


question:
Fact: a meter stick is a measuring device. 
Question: what is a meter stick?
answer:

measuring device.