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: Potosí department had 6	Plurinominal Deputies.

SOLUTION: Potosí

PROBLEM: Alpena County Regional Airport city served Alpena, Michigan.

SOLUTION: Alpena County Regional Airport

PROBLEM: Ashgabat International Airport is 211 metres above sea level.

SOLUTION:
Ashgabat International Airport