The features are similar to those for the mention-pair model as shown in Table 2, but their values are calculated at an entity level.
the lexical and grammatical features are computed by testing any mention 1 in the entity against the active mention, for ex-1 Linguistically, pronouns usually have the most direct coref-ample, the feature nameAlias is assigned value 1 if at least one mention in the entity is a name alias of the active mention.