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 graduated cylinder is used to measure volume of a liquid.
Output: 


Output:
a graduated cylinder is used to measure volume of a liquid.
graduated cylinder measure.
graduated cylinder.
liquid examples.
liquid water.
measure volume liquid.
volume liquid measure.
volume liter.
volume of liquid liter.
volume space.
water is a liquid.
water liquid.