Afterwards, if the confidence of the classifier is below p 2 , we discard the sentence, if it is above p 1 we enforce our constraints regardless of the Baseline CRF output.
for probability statement extraction, for a sentence such that |t P | = 0, then we define a modified output y B (B standing here for Baseline) where y B t = O ∀t = 1 : T , else we keep the original output so that y B t = y * t ∀t = 1 : T .