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: Alaminos has a population density of 757.5 per square kilometer.

SOLUTION: Alaminos

PROBLEM: Shenzhen is part of Guangzhou's built-up area.

SOLUTION: Shenzhen

PROBLEM: Episode \Do-Si-Do\"" had a rating of 0.9/2 (#5) for 18-49 age range.

SOLUTION:
Do-Si-Do