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.
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Question: Minkie spiro directed the episode "the departed".

Answer: the departed


Question: The ISBN number of Aenir is 0-439-17684-0.

Answer: Aenir


Question: The ISBN number of the book A Fortress of Grey Ice is 0-7653-0633-6.

Answer:
A Fortress of Grey Ice