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:
pipo de clown (english: pipo the clown) is a clown who became very popular on dutch television.

Ex Output:
pipo de clown


Ex Input:
a mathematician's apology is a book about mathematics which was written in 1940.

Ex Output:
a mathematician's apology


Ex Input:
mae laborde (mae shamlin may 13, 1909 – january 9, 2012) was an american movie and television actress, and an entertainer.

Ex Output:

mae laborde