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.

Q: 200 Public Square has a floor area of 111484 square metres.

A: 200 Public Square
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Q: Malik Muhammad Rafique Rajwana is a leader in the Punjab, Pakistan.

A: Punjab, Pakistan
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Q: The River-class destroyer escort was built in 1961.

A:
River-class
****