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.

Example Input: norio omura (小村 徳男, omura norio, born september 6, 1969) is a former japanese football player.
Example Output: norio omura

Example Input: david evan mcmullin (born on april 2, 1976) is a former cia operations officer and independent presidential candidate.
Example Output: evan mcmullin

Example Input: steinsoultz is a commune.
Example Output:
steinsoultz