Read the text and determine if the sentence is true:

Thirteen Reasons Why is a young adult novel written in 2007 by Jay Asher. It is the story of a young high school student as she descends into despair brought on by betrayal and bullying, culminating with her suicide. She details the thirteen reasons why in an audio diary which was mailed to a friend two weeks after her death.

Sentence: The student in the story was depressed for many years.
It's impossible to say