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: an animal requires nutrients to grow and heal.
[EX A]: animal nutrients.

[EX Q]: Fact: planting trees has a positive impact on an ecosystem.
[EX A]: an ecosystem.

[EX Q]: Fact: Feathers help birds fly and provide insulation.
[EX A]:
bird eagle.