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.

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

A: magnetic north.
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Q: Fact: pines have a positive impact on an ecosystem. 
Question: what has a positive impact on an ecosystem?

A: pines.
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Q: Fact: fluid that leaks out of capillaries into spaces between cells contains lymphocytes. 
Question: What is contained in the fluid that leaks out of capillaries into spaces between cells?

A:
Lymphocytes.
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