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:
survivor series (2016) was a wrestling pay-per-view (ppv) made by wwe for the "raw" and "smackdown live" brands.

Ex Output:
survivor series (2016)


Ex Input:
the jungle book is a collection of stories written by rudyard kipling.

Ex Output:
the jungle book


Ex Input:
ellen gates starr (march 19, 1859, near laona, illinois – february 10, 1940, in suffern, new york) was an american social reformer and activist.

Ex Output:

ellen gates starr