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.
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Question: Fact: Most ecosystems get energy from sunlight.

Answer: ecosystem habitat.


Question: Fact: producing thrust causes something to move.

Answer: engines produce thrust.


Question: Fact: Stimuli are detected by sensory nerve cells.

Answer:
Stimuli.