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: microorganisms can cause infections.
infection.

Fact: Flowers attract animal pollinators.
animal pollinator.

Fact: Most mollusks have shells.

mollusks.