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: Milk is a nutritious fluid.
[EX A]: milk comes.

[EX Q]: Fact: Many seeds can wait to germinate until conditions are favorable for growth.
[EX A]: germinate conditions.

[EX Q]: Fact: Active immunity results when an immune response to a pathogen produces memory cells.
[EX A]:
Active immunity.