TASK DEFINITION: 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.
PROBLEM: On May 10th, 1918, the keel of PE-2 was laid.

SOLUTION: PE-2

PROBLEM: The OCLC number of A Loyal Character Dancer is 49805501.

SOLUTION: A Loyal Character Dancer

PROBLEM: Construction of Adisham Hall began in 1927.

SOLUTION:
Adisham Hall