Results from SANAPHOR have not been reported because it has been built over the Stanford decoref that uses the CoNLL specific features and then cannot be compared with the actual models of Sanaphor++ and Stanford deep-coref.
it means that if an antecedent is not an empty antecedent and if the set of true antecedents is equal to empty, then this antecedent is likely to be a wrong pair;  belonging to the hierarchy of type of the antecedent is in the set of the true types, then this antecedent is likely to be a good pair.