[tylerhou]

> as well as derivatives of the copy

Shouldn't this imply that it's illegal for me to make quizzes on my own from information I found in a textbook? If this app is implemented correctly, what it does should be indistinguishable from a human. It makes no sense to change the infringement status of a work based on how the work was produced.

Also, generally hard facts (like when Hitler died or how Hitler killed himself) are not copyrightable.