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.

Input: Consider Input: Fact: Organisms cluster around hydrothermal vents in the ocean floor.

Output: bacteria vents.


Input: Consider Input: Fact: Hair is a fiber that is found only in mammals.

Output: hair auburn.


Input: Consider Input: Fact: bacteria cause food poisoning.


Output: bacteria coli.