 Oroko appears to be particularly close to Kpwe (A.22), with which mutual intelligibility might be possible to some extent.The Bube language of Bioko Island (not to be confused with Bubia or Wovea) included in A.30 on geographic grounds, has no particular affinities with the others.Other A.10 languages apart from the Manenguba cluster (A.15 excluding Bafaw-Balong) may also belong, but this is uncertain as they are poorly documented.