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: Australian Football League has 6,931,085 spectatorship in total

SOLUTION: Australian Football League

PROBLEM: AEK Athens F.C. has 69618 members.

SOLUTION: AEK Athens F.C.

PROBLEM: Jacques Laffite drove the No. 21 car at the 1975 Swiss Grand Prix.

SOLUTION:
Jacques Laffite