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.

Ex Input:
The Swiss Psalm is the anthem of Switzerland.

Ex Output:
Switzerland


Ex Input:
Nina Hagen acted in the 1979 film Cha-Cha.

Ex Output:
Cha-Cha


Ex Input:
The novel Aenir was preceded by the novel Castle.

Ex Output:

Aenir