Definition: 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.

Positive Example 1 -
Input: Fact: pesticides cause pollution.
Output: pollution harms.

Positive Example 2 -
Input: Fact: pesticides cause pollution.
Output: modern farming pesticide.

Negative Example 1 -
Input: Fact: pesticides cause pollution.
Output: computer harms.

Negative Example 2 -
Input: Fact: pesticides cause pollution.
Output: toopaste helps.

Now complete the following example -
Input: Fact: Mammalian teeth are important for digestion.
Output: 


Output:
Mammalian human.
Mammalian.
digestion absorb nutrients.
digestion break down food.
digestion food nutrients.
digestion provides nutrients.
digestion survival.
digestion.
mammalian human.
mammalian teeth.
mammalian.
mammalian\teeth.