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: Pressure receptors are found mainly in the skin.

A: Pressure receptors.
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Q: Fact: hearing is used for sensing sound by animals.

A: animal dog.
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Q: Fact: Placental mammals give birth to relatively large and mature infants.

A:
elephants large birth.
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