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: Evolution is a change in the characteristics of living things over time.
[A]: Evolution.


[Q]: Fact: a freezer is used for cooling things.
[A]: cooling food helps it last longer.


[Q]: Fact: Sight is the ability to sense light, and the eye is the organ that senses light.
[A]:
ability to sense light.