-aaa- aabaa aabba aabra aarna abaab ababa abaka abana abank abann abara abarn abava abban abbar abkar abnak abrak abran abrar akaba akana akban akbar akkra akrak akrar anaba anaka anana anara anava anban anbar ankaa annan annar anvar ar-ab arab- araba arana arank arara arava arbab arbar arkan arkar arkna arnan arnar arrak arran arvak arvan arvar avana avara b-r-k baarn baava babak baban babar babka babra bakan bakar bakka bakra banak banan banar banba banka banna baraa barab barak baran barar barba bark- barka barna barra barva bavan bavar bavra braak brana brank brann brava brrar brrrr k-rab kaaba kaava kabaa kabab kabak kaban kabar kabba kakan kakar kakka kakra kanab kanak kanka kanna kanva karak karan karka karna kavak kavan kavar kavka kbank knark knarr kraak kraan kraar kraka krank krnka naaak naban nabar nabba nakar nakba nanak nanan nanka nann- nanna nanva narak naran narka narra narva navan navar nkana nkara nrank ra-ra raaba rabab rabak raban rabba rakaa rakab rakan ranka ranna ravak ravan ravar ravna rkavv vaana vaara vanab vanak vanan vanar vanna varab varak varan varna varra varva vavan vavar vavra vraka vrana vrban vrbka