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: a light bulb requires electrical energy to produce light.
Output: 


Output:
coal can be used to create electricity.
electrical energy electrons.
electrical energy is produced in power plants.
led light bulb.
light bulb electricity.
light bulb energy.
light bulb.
light photons.
light rays.
light spectrum.
power plants produce electrical energy.
produce light see in dark.