-aaa- aaaaq aaaee aabaa aabba aabra aaqbe aaqua aarau abaab ababa ababe ababu abaer abara abare abaru abbar abbou abbur abear abeau abeba abebe abeer abera abere aberr aboab abobo abora abore aboue abrar abreu abura aburr aeaea aebbe aequo aereo aero- aeroe aerru aoure aqaba aqqur aqrab aqua- aquae aquo- ar-ab arab- araba arabe arabo araea arara arare araru arbab arbar arbee arber arbor arbre areae arear areo- arere arero aroab aroar aroba arobe aroer aroor arora arore arq-e arque arrau arrea arroe arrou arrua aruaa aruba arura aruru auber aurae aurar aurea auro- auroa auror aurra baabe babar babau babee baber baboo babou babra babur baoro baqaa baque baraa barab barao baraq barar barba barbe barbq barbu barea bareo bareq barer baro- baroa baroo baror barra barre barro barru barua baruq baubo bauer baura baure bauru bbbee bbear bbqer be-er be-ro beara beare bebar beber bebra beebe beour beqaa beque berar berau berba berbe berea berob beroe beror berra berre berru beuer beure bo-bo boaro bobar bobea bobr bobre boero boeur booba booer boora boore booru borau borba borbo borea boree borer boro- boroa boroo borou borra borre borro bouar bouba bouee bouer boura boure braaq breba brebu breer breo- brera brere breu- brobo broer brora broue brrar brrrr bruer bubba bubbe buber buraa burao buraq burea buroo burqa burra burro burru buruq earar earou ebara ebber eboue ebure eeeee eorre erbaa erbar erbbe erber erear erere eroor erora erore error eubro euro- euroa eurre o-r-b oarer oaror obaba obara obora oboro oboue obrab obreb oo-er ooooo oquea oraba oraea orara orare orbea orear oreo- orera orere orero orobe orobo oroer oroua orque orube oruro ouara ouera ouoro ourba oure- ourea qabab qabqa qarab qarqa qorab qoroq qoruq quaer quara quare qubba quebo queeb queer queor quere quero queue quobb quora quore qureq quruq ra-ra raaba raabe raaor rabab rabba rabbe rabor rabou raqba raqqa rarae rareb raree rarer rear- reaue rebab rebar rebbe reber rebra reere requa reque rere- reree rerob reuar reuer ro-ro roabe roaue robab robar robbe robbo rober robo- robor robur roera roero rooba rooer roore rooue roque rorbu rorer rorra rouba rouer roura roure rubab rubba rubee ruber rubor rubra ruere uaroo uber- ubobo uouee uqbar uraba urare urbar urea- ureae ureo- urera uroob urour urrao urrea urubu uuuuu