In our re-implementation of B&L, we use the same parameter settings as B&L's original model, i.e., the optimal transition length k = 3 and the salience threshold l = 2.
when extracting entities in each sentence, e.g., dollar, yesterday, etc., we do not perform coreference resolution; rather, for better coverage, we follow the suggestion of Elsner and Charniak (2011) and extract all nouns (including non-head nouns) as entities.