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.

[EX Q]: Fact: if weather is stormy then there is a greater chance of rain.
[EX A]: hurricanes stormy.

[EX Q]: Fact: a telephone is used for communication by humans over long distances.
[EX A]: communication convey.

[EX Q]: Fact: producing thrust causes something to move.
[EX A]:
engines produce thrust.