bloor blorb blort bloto blott blout blurb blurr blurt bluto bo-bo boboc bobr bocor boll- bollo bollu bolto booco boort booru borbo boro- boroo borot borou borro borul borut botou botro bottu boul- boulc boulo boult bouto brobo broll brolo brool broto brout brrrr brull btr-t bucco bucur bulb- bull- bulou bulto bulul bulut buolt burcu burol buroo burro burru burtt buruc burut buto- butor butot butou butuo butut c-cor ccccc ccrcl cctrl cloob cloor cloot clort clour clout clubb clurr clutt co-bo co-co cobol cobot cocc- cocco cocol cocto cocur coll- collo colo- color colur coolo corbo corbu corlu coro- corol corot corrl corto cott- cotto cottu cotul couco coull coult courb courl court couru couto coutu croco croll crool croot crott croul crout crull cruor ctrlc ctrol ctulu cubo- cubot cubub cullu culot culto culur cuoco curll curlo curlu curro curto cutco cutcu cutro cutto lobbo lobo- lobor loco- locro lollo lolol loobu lorut lotor lotru lotto louro ltcol lubur lucur luluc lulul lutol lutto o-r-b obolo oboro obout occur ocllo ocr-b octo- octol octor ocul- oculo ollur olotu olour ooooo orbot orobo oroco orolu orout ortoo oruro orutu otcbb otolo ototo otour ottur otulu oubut oullo ouoro ourol outro outto r-co- rcolo ro-ro robbo robo- robor robot robrt robur rocco rocor rocou rollc rollo rorbu roto- rotol rotor rotot rotto roubt roull routt rubor rucul rullo rutul ruutu tbolt tbtbt tbutt tcobb tllbr tobol tobor tobot tobou tocco toco- tocut tolbo tollo toloo tolor tolu- toolt torob torro torto tortu torul toto- totoo toull touro trboc troco troll trott troul trout trubu truco trull truro ttttt tubo- tubou tubul tuctu tulor tulou tuotu turbo turbt turco turoc turot turro turtu turul turut tutor tutto tuuru ubobo ubolt ulcot ullur ululu uluru uroob urour urtlu urubu urucu urutu utro- utror uttur uturu ututo uuuuu