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.

Boulder Dam belongs to the historical genre.
Boulder Dam

Andy Bean, Mike Reid, and Curtis Strange tied for second place at the PGA Championship.
PGA Championship

Title of episode 06-02-406 is "forwards backwards".

forwards backwards