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: 2nd Amendment was a Jive Records song.
Example Output: 2nd Amendment

Example Input: The elapsed time for Yendys was 2:14:12:49.
Example Output: Yendys

Example Input: The construction of 250 Delaware Avenue began in January 2014.
Example Output:
250 Delaware Avenue