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: one of the ingredients of the BLT sandwich is Lettuce.
Example Output: BLT

Example Input: The title of the episode daphne field wrote is "the wreckers.
Example Output: the wreckers

Example Input: William Craik Left the office in March 3, 1801.
Example Output:
William Craik