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: Shigeo Yaegashi played 45 games and scored 11 goals for Japan until 1968.
Example Output: Shigeo Yaegashi

Example Input: Accademia di Architettura di Mendrisio is located in the city of Mendrisio.
Example Output: Accademia di Architettura di Mendrisio

Example Input: "secrets" aired in april17,1998.
Example Output:
secrets