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: faulting of rock in Earth 's crust causes earthquakes.
Output: 


Output:
Earthquakes are shaking.
earth faults.
earth's crust fault.
earthquake fault.
earthquake tremor.
earthquakes cause damage.
earthquakes cause.
earthquakes p-wave.
earthquakes tremors.
earthquakes.
faulting of rock in Earth 's crust.