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: Greece leader name is Alexis Tsipras.

SOLUTION: Greece

PROBLEM: Cornell University is in the state of New York.

SOLUTION: Cornell University

PROBLEM: Medium well (cuit) meat have small amount of pink in the center.

SOLUTION:
Medium well (cuit)