Theoretically, proper names do not occur in a hypernym relation, since whether or not they would be considered correct is highly dependent on the context of the document: the hypernym pair (priest, John) can be correct in a text where John is in fact a priest, but if another non-priest John is referred to this pair would be incorrect.
correct hypernymhyponym pairs not occurring in the same clus-ters are erroneously eliminated by the filtering module.