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: It was performed 5th in the top 11.

SOLUTION: top 11

PROBLEM: Cortex assembly for genome and date

SOLUTION: Cortex

PROBLEM: Greece demonym is Greeks.

SOLUTION:
Greece