Generate a topic word for the given sentence. A topic word is usually the name of a person, place, animal, concept or object the sentence is focusing on.

Input: Consider Input: rougefay is a commune.

Output: rougefay


Input: Consider Input: an air raid is an attack in which bombs are dropped from aircraft on to a ground or sea target.

Output: air raid


Input: Consider Input: shawn colvin (born january 10, 1956 in vermillion, south dakota) is a singer-songwriter and a musician.


Output: shawn colvin


