TASK DEFINITION: In this task, you are given sentences from movie reviews. The task is to classify a sentence as "POS" if the sentiment of the sentence is positive or as "NEG" if the sentiment of the sentence is negative
PROBLEM: ... with the gifted Pearce on hand to keep things on semi-stable ground dramatically , this retooled Machine is ultimately effective enough at achieving the modest , crowd-pleasing goals it sets for itself .

SOLUTION: POS

PROBLEM: Might best be enjoyed as a daytime soaper .

SOLUTION: NEG

PROBLEM: What lifts the film high above run-of-the-filth gangster flicks is its refusal to recognise any of the signposts , as if discovering a way through to the bitter end without a map .

SOLUTION:
POS