instruction:
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.
question:
Fact: exercise has a positive impact on a human 's health.
answer:
Exercise is movement.


question:
Fact: high temperatures can cause an object to combust.
answer:
Combustion.


question:
Fact: a watch is used for measuring time.
answer:

measuring time hours.