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: decomposition increases amount of organic matter in soil.
Output: 


Output:
decomposition bodies matter.
decomposition is dead.
decomposition matter.
decomposition soil organic.
decomposition.
organic carbon.
organic matter carbon.
organic matter helps plants grow.
organic matter in soil.
organic matter.
soil dirt.
soil organic.
types of organic matter in soil.