question: Review:
if anything , the film is doing something of a public service -- shedding light on a group of extremely talented musicians who might otherwise go unnoticed and underappreciated by music fans .
Is this review negative or positive?
OPTIONS:
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- positive

answer: positive

question: Review:
what 's missing from this material is any depth of feeling
Is this review negative or positive?
OPTIONS:
- negative
- positive

answer: negative

question: Review:
is a must
Is this review negative or positive?
OPTIONS:
- negative
- positive

answer:
positive