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: The year to april when the revenue is 434.8 million dollars is 2012

SOLUTION: 2012

PROBLEM: The episode "bringing back the doctor is 1".

SOLUTION: 1

PROBLEM: Agremiação Sportiva Arapiraquense played in the 2015 season.

SOLUTION:
Agremiação Sportiva Arapiraquense