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: if heat is conducted to an object then that object will become hot.
conducted heat.

Fact: a circle graph can be used to display percents.
Graphs are made of.

Fact: Birds are endothermic tetrapod vertebrates.

Birds.