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: Marriott International is the tenant of AC Hotel Bella Sky Copenhagen.

SOLUTION: AC Hotel Bella Sky Copenhagen

PROBLEM: Charles Christianson's two runs combined for a total time of 1:50.66

SOLUTION: Charles Christianson

PROBLEM: The New Model Police Revolver was manufactured from the years 1865-1873

SOLUTION:
New Model Police Revolver