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:
camborne is a town in west cornwall, england, united kingdom.

Ex Output:
camborne


Ex Input:
dennis kearney (1847–1907) was an american politician who was himself an immigrant from ireland.

Ex Output:
dennis kearney


Ex Input:
pontoise is a commune of the val-d'oise department in the northwestern suburbs of paris, france.

Ex Output:

pontoise