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: All chemical reactions require activation energy to get started.
answer:
activation energy enzyme.


question:
Fact: Light enters the eye through an opening called the pupil.
answer:
eyes are used to see.


question:
Fact: Eggs are usually laid in a nest.
answer:

alligators lay eggs.