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 product whose market name is "xperia u" is 110g

SOLUTION: xperia u

PROBLEM: Music Video was released in 2006

SOLUTION: Music Video

PROBLEM: Theodore Roosevelt High School has 551 students.

SOLUTION:
Theodore Roosevelt High School