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: a sifter is used for separating mixtures.

A: Sifter.
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Q: Fact: Condoms can break; Condoms can be used incorrectly.

A: condom birth control.
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Q: Fact: a pesticide is used for protecting plants by killing insects.

A:
a pesticide is.
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