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.

Example Input: Great Britain won 29 bronze medals.
Example Output: Great Britain

Example Input: The leader of Atlanta is the Atlanta City Council.
Example Output: Atlanta

Example Input: The second episode of HolbyBlue is titled Episode 2
Example Output:
Episode 2