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: The primary sponsor of Bill Elliott Racing is Aaron's Dream Machine
Example Output: Bill Elliott Racing

Example Input: The hub airport for Turkmenistan Airlines is Turkmenbashi International Airport.
Example Output: Turkmenistan Airlines

Example Input: Amsterdam Airport Schiphol is -3.3528 metres above sea level.
Example Output:
Amsterdam Airport Schiphol