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: burning fossil fuels increases the carbon in the atmosphere.

Output: carbon atmosphere.


Input: Consider Input: Fact: bad weather decreases visibility while driving.

Output: decreased visibility and driving causes.


Input: Consider Input: Fact: braking can cause skidding.


Output: braking friction.