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.

Fact: Cynodonts became more mammal-like as they continued to evolve.
Cynodonts.

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

Fact: Condoms can break; Condoms can be used incorrectly.

condom birth control.