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.

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

Ex Output:
norio omura


Ex Input:
erzurum is a city in eastern anatolia (asian turkey).

Ex Output:
erzurum


Ex Input:
michelbach-le-bas is a commune.

Ex Output:

michelbach-le-bas