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: if an object is black then that object absorbs all visible light.
Output: 


Output:
Light is radiation.
black absorbs light.
black coal.
black light.
black raven.
light are photons.
light energy.
light is energy.
light rays.
melanistic animal black.
object item.
sunlight light.
visible light spectrum.
visible light.