-aaa- aaaee aabaa aabba aabra abaab ababa ababe abaer abara abare abbar abear abeba abebe abeer abera abere aberr aboab abobo abora abrar aeaea aebbe aereo aero- aeroe ar-ab arab- araba arabe arabo araea arara arare arbab arbar arbee arber arbor arbre areae arear areo- arere arero aroab aroar aroba arobe aroer aroor arora arore arrea arroe baabe babar babee baber baboo babra baoro baraa barab barao barar barba barbe barea bareo barer baro- baroa baroo baror barra barre barro bbbee bbear be-er be-ro beara beare bebar beber bebra beebe berar berba berbe berea berob beroe beror berra berre bo-bo boaro bobar bobea bobr bobre boero booba booer boora boore borba borbo borea boree borer boro- boroa boroo borra borre borro breba breer breo- brera brere brobo broer brora brrar brrrr earar ebara ebber eeeee eorre erbaa erbar erbbe erber erear erere eroor erora erore error o-r-b oarer oaror obaba obara obora oboro obrab obreb oo-er ooooo oraba oraea orara orare orbea orear oreo- orera orere orero orobe orobo oroer ra-ra raaba raabe raaor rabab rabba rabbe rabor rarae rareb raree rarer rear- rebab rebar rebbe reber rebra reere rere- reree rerob ro-ro roabe robab robar robbe robbo rober robo- robor roera roero rooba rooer roore rorer rorra