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:
ricardo de la espriella toral (born september 5, 1934) is a panamanian politician.

Ex Output:
ricardo de la espriella


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:
the administrator of the northern territory is the person selected by the governor-general of australia to act as the governor of the northern territory of australia.

Ex Output:

administrator of the northern territory