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: Sight is the ability to sense light, and the eye is the organ that senses light.
Output: 


Output:
ability to sense light.
eye is the organ that senses light.
eye light sight.
eye retina light.
eye sight.
eye.
eyes organ light.
light images.
light photon.
retina.
sight processed in the brain.
sight vision.