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: Cyril Ramaphosa is the leader of South Africa.
Example Output: South Africa

Example Input: Horton Smith is from the United States.
Example Output: Horton Smith

Example Input: Nowa Książka (New Book) is 10:26 long.
Example Output:
Nowa Książka (New Book)