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: Album is Kun valaistun sales is 31,541

SOLUTION: Kun valaistun

PROBLEM: Don edwards (d) 77.0% john m. enright (r) 23.0% was running for office in the California 10 district.

SOLUTION: California 10

PROBLEM: John Francis Mercer is a part of the Anti-Administration party.

SOLUTION:
John Francis Mercer