TASK DEFINITION: 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.
PROBLEM: Jack Kirby is an American.

SOLUTION: Jack Kirby

PROBLEM: Andrews County Airport is 4th runway length feet of 25.

SOLUTION: Andrews County Airport

PROBLEM: Japan has an ethnic group called Koreans in Japan.

SOLUTION:
Japan