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: Adolescence is a time of significant mental, emotional, and social changes.

Answer: Adolescence.


Question: Fact: skin is used for breathing air by frogs.

Answer: air oxygen.


Question: Fact: Plasma cells are activated B cells that secrete antibodies.

Answer:
antibodies fight infection.