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:
rita gam (april 2, 1927march 22, 2016) was an american and television actress and documentary filmmaker.

Ex Output:
rita gam


Ex Input:
blairlogie is at the base of the great cliff of dumyat between stirling and menstrie was one of central scotland's earliest conservation villages.

Ex Output:
blairlogie


Ex Input:
tony bennett (born anthony dominick benedetto, august 3, 1926) is an american singer who is best known for his song "i left my heart in san francisco".

Ex Output:

tony bennett