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:
glenn branca (october 6, 1948 – may 13, 2018) was an american avant-garde composer and guitarist.

Ex Output:
glenn branca


Ex Input:
paolo ferrari (26 february 1929 – 6 may 2018) was an italian actor.

Ex Output:
paolo ferrari


Ex Input:
mrs. hugh hammersley is an oil painting by john singer sargent.

Ex Output:

mrs. hugh hammersley