question: Review:
this enthralling documentary ... is at once playful and haunting , an in-depth portrait of an iconoclastic artist who was fundamentally unknowable even to his closest friends .
Is this review negative or positive?

answer: positive

question: Review:
succeed merrily
Is this review negative or positive?

answer: positive

question: Review:
walked the delicate tightrope between farcical and loathsome
Is this review negative or positive?

answer:
negative