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.

Example Input: The 3Arena is located in Dublin.
Example Output: 3Arena

Example Input: AEK Athens F.C. has 69618 members.
Example Output: AEK Athens F.C.

Example Input: The length of the runway at Andrews County Airport is 1773 metres.
Example Output:
Andrews County Airport