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: Christian "cj" koegel were in rw: cancun as their original season.

SOLUTION: rw: cancun

PROBLEM: The Senator representing California was Dianne Feinstein.

SOLUTION: California

PROBLEM: Player Keith Woodside plays for Green Bay Packers.

SOLUTION:
Keith Woodside