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: monsignor lorenzo albacete (january 7, 1941 october 24, 2014) was an american theologian, roman catholic priest, scientist and author.
Example Output: lorenzo albacete

Example Input: the diamond cutter is a wrestling finishing move done by the wrestler diamond dallas page.
Example Output: diamond cutter

Example Input: north delhi is an administrative district of the national capital territory of delhi in india.
Example Output:
north delhi