instruction:
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.
question:
The largest city in Turkey is Istanbul.
answer:
Turkey


question:
Christian Panucci has been manager of A S Livorno Calcio.
answer:
Christian Panucci


question:
Al Unser, Jr. is from the United States
answer:

Al Unser, Jr.