-aaa- aabaa aabba aabra aarau abaab ababa ababu abaka abara abaru abbar abbur abkar abrak abrar abura aburr akaba akbar akbuk akkra akkub akkur akrak akrar akuku akura ar-ab arab- araba araku arara araru arbab arbar arkar arrak arrau arrua aruaa aruba arura aruru aukra aurar aurra b-r-k babak babar babau babka babra babur bakar bakau bakka bakra bakur baraa barab barak barar barba barbu bark- barka barra barru barua baura bauru braak brrar brrrr bubba bubka bukk- buraa burak burka burra burru buruk k-rab kaaba kaabu kaaru kabaa kabab kabak kabar kabba kabru kabua kabur kakar kakau kakka kakku kakra kakur karak karbu karka karku karuk karur kaura kauru kraak kraar kraka kuaka kuara kubau kubba kubra kukak kukar kukka kukua kukur kurak kurar kurbu kurka kurku kuruk ra-ra raaba rabab rabak rabba rakaa rakab ruaka ruark rubab rubba rubra rurak rurka uraba urbar urubu uuuuu