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: Pneumonia may be caused by an infection or injury of the lungs.
Pneumonia.

Fact: an anemometer is used to measure wind speed.
anemometer meteorologist.

Fact: Some birds are pollinators that co-evolved with plants.

bird pollinator.