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:
an aloha shirt (also known as a hawaiian shirt) is a type of shirt that comes from hawaii.

Ex Output:
aloha shirt


Ex Input:
click beetle is the common name for beetles in the family elateridae.

Ex Output:
click beetle


Ex Input:
mickey jones (june 10, 1941 – february 7, 2018) was an american drummer and actor.

Ex Output:

mickey jones