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.

Input: Consider Input: Fact: being exposed to wind can cause erosion of soil.

Output: being exposed to wind can cause erosion of soil.


Input: Consider Input: Fact: having food has a positive impact on an organism 's health.

Output: food contains.


Input: Consider Input: Fact: unequal heating of Earth 's surface by the Sun causes global wind patterns.


Output: earth our planet.