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: Vidarabine (Ara-A)'s trademark is Vira-A ®
Example Output: Vidarabine (Ara-A)

Example Input: Josh Beckett is from Spring, TX.
Example Output: Josh Beckett

Example Input: The house colour associated with the house name of Kupe is yellow.
Example Output:
Kupe