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:
Hohhot is in the Inner Mongolia province.

Ex Output:
Hohhot


Ex Input:
A Wizard of Mars ISBN number is "978-0-15-204770-2".

Ex Output:
A Wizard of Mars


Ex Input:
René Follet was in the series Valhardi for 2 volumes.

Ex Output:

Valhardi