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.

Ex Input:
Fact: eating something that contains pollutants has a negative impact on an organism 's survival.

Ex Output:
organic food pollutants.


Ex Input:
Fact: being burried under soil and mud changes vegetation into peat through extreme heat and pressure in a swamp over a long period of time.

Ex Output:
buried under soil and mud.


Ex Input:
Fact: All life relies on a relatively narrow range of pH, or acidity.

Ex Output:

all life organisms.