aaaaba aabroo ababou abarat abaroa abarta abatar abator abatur abbott abburu abobra aborto abouta abrota aburto aorto- aourou arabo- ararao ararat arator aratta araua araura arbour arbra aroura arraba arroba arrour arrout arturo aruaru arutua at-bat at-tur ataaba atarba atarot atarra atbara atrata atrato atroot atrout attoor attour atuabo atutor atutur aurata aurora autoba autor- baabaa baabar baarbu baaror baatar baator babatu babbar baboua babrru babura baobab baotou bar-or baraat barara barata barato baraut barbar barbat barbot barbra barbro baroot baroto barrat barrou bartab bartra baruar baruot baruta barutu batara batata baturu bauour baurua bautar bautta bbbbbb boabab bobara bobbar bobbau bobota booboo boorta borata borato borbor bororo borota botoro botota boubou bourou bourra boutob braura brotto bruart brubru brutto bububu burato burbot burbur burotu burutu butbro buttar buttto buutuo oatbar obturb obubra oooooo orator oratta orbara orrour otaara ottarr ottaua ottoor ottrau outbar outour outtro raabau raabta rababa rabato rabaut rabbat rabbot rabuor raruto ratata ratbat ratbor ratbot ratout rattar rattat roarat roatta roatto robata robatu robota roboto rooart rorbua rotaru rotour rotout rotrou routot rubarb rubato rubbot rubbra rubout rubro- rubutu rurutu rutabo rutour t-barb taarab tabara tabata tabbat tabbor taboot tabora tabour taobao taobat taotao taoura taraba tarara tarata tarbor tarbut tarrar tartar tartor tartr- tataat tatara tataru tatoba tatora tatort tattat tattoo tattou tatuar tatura tauro- tauto- tautou tautra to-rat toatoa tobaru tobata toboot tooart tootat tootoo tororo torrao tortor tortou totara totora totoro totota totrot touart toubab tourat tourou toutou toutuo tra-ra trabau trotro trotta trubar trutta tuatua tuotuo turabo turatt turbat turbo- turbot turtur tururu tutour tuttut tutuba u-boat u-boot ubauro urartu uruara utroor uttara uturoa