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: Many consumers feed at more than one trophic level.
animal consumers.

Fact: travelling requires navigation.
Maps are very useful in navigating through challenging terrain.

Fact: condensation is when change from a gas into a liquid by reducing heat energy.

condensation gas liquid.