question: Sentence from a movie review: it 's a bad sign in a thriller when you instantly know whodunit .

answer: negative

question: Sentence from a movie review: as ugly as the shabby digital photography and muddy sound

answer: negative

question: Sentence from a movie review: the observations of this social/economic/urban environment are canny and spiced with irony .

answer: positive

question: Sentence from a movie review: spirited film

answer:
positive