 It shares the and sounds with the Sadz dialect, and the , , , , , , and sounds are unique to Bzyb.Standard Abkhaz (which is based on the Abzhywa dialect) lacks these sounds.The Bzyb consonant inventory appears to have been the fundamental inventory of Proto-Abkhaz, with the inventories of Abzhywa and Sadz being reduced from this total, rather than the Bzyb series being innovative.