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: Behaviors can be learned through play.

A: Behaviors.
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Q: Fact: cross-pollination increases genetic diversity.

A: cross-pollination.
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Q: Fact: Plants exhibit phototropism, or growing toward a light source.

A:
electricity can produce light.
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