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 seismograph is used for measuring the size of an earthquake.
Output: 


Output:
earthquakes can cause damage.
earthquakes tremors.
seismograph earthquake.
seismograph invented by.
seismograph.
size of an earthquake.
size of earthquake scale.
size of earthquake.
size of earthquakes.
what damage does sizes of earthquakes do.