This task is about identifying the subject of a given sentence. The subject of a sentence is the person, place, or thing that is performing the action of the sentence. The subject represents what or whom the sentence is about. Each sentence in this task is guaranteed to contain a single subject. The input is a sentence and the output is the identified subject of that sentence.

Ex Input:
Appleton International Airport can be found in Greenville, Wisconsin.

Ex Output:
Appleton International Airport


Ex Input:
Alcatraz Versus the Evil Librarians has the ISBN number 0-439-92550-9.

Ex Output:
Alcatraz Versus the Evil Librarians


Ex Input:
BBC is located in London.

Ex Output:

BBC