But, an S sense is more likely to appear in a P(olar) expression.
we consider confidence (rule R3): If the contextual classifier labels an instance as N, but SWSD determines it has an S sense and the contextual classifier's confidence is low, 6 then R3 flips the contextual classifier's label to P. Rule R4 is analogous to R2 in the previous section: If the contextual classifier labels an instance as P, but (1) SWSD determines that it has an O sense, (2) the contextual classifier's confidence is low, and (3) there is no other subjective keyword in the same expression, then R2 flips the contextual classifier's label to N. We compare the performance of the original neutral/polar classifier (O N/P ) and sense-aware variants using R3 and R4.