In this task, you need to write a topic word from the given fact. The topic word must have at least one word overlap with the given fact. The topic word often involves adding a new word from a related concept. In your topic word, use at least one word from the given fact. Topic words with two or more words work best.

Q: Fact: Producers make food from inorganic molecules.

A: inorganic molecules.
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Q: Fact: rocks interacting with wind over long periods of time causes weathering.

A: rock limestone.
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Q: Fact: Viruses infect and live inside the cells of living organisms.

A:
human organisms.
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