bibbo bibio bibri bimbo bipib birmi birou birum birur bmiii bmp-r bo-bo bobbi bobr bobri bobup boiro bombo boomb booru borbo borim borio bormo boro- borom boroo borou borro borum borup bouri brimm brimo briou brmmm brobo brom- bromo broom brrrr bruiu brumm bruri bumbo bumbu bumpo burim burio buroo burri burro burru buumi i-m-r ibbur ibibo iiiii impir impro impur iommi ioooi ioooo iorio ipour ipubi irimi irobo irori irour irupi m-rip mbiri mbori mboro mburu mi-mi mibor mimbo mimio mimir mimmi mimo- mimpi miour mipim mipro mirim mirri mmiii mmmmm mmpip mobor mobro mombi mombo mombu momir momoi moooi moori mooro moppi mopup morbi morbo morib morio mormo moroi morop moror morou morro morum morup mouri mpbou mpiri mprim mrmom mrorr mrpii mrpim muiri mumbi mumbo mummu muppu murmi muroi murom muror murri murro murru murum murup o-r-b obimo oboro obrom omoro omupo ooioo ooooo opio- opir opium opobo oppum opump orbom oribi orium ormur orobo oromo oropi orrum oruro ouir- ouoro pibor piiri pimbo pippi pippo pipri pirou pirri pirro pirui pirum piuri piuro piuru po-po poipu pombo pomi- pomor pompu pomum poopo poori popoi popop poppi poppo popup poro- poroi porri porro porum porur primi primm primo primp priob prior probo promo proor prop- propp propr pubo- puppo pupri purim purio purmo puro- purum puuri ribbi ribo- ribup rimbo rimmi rimou rimpi rimur ripio ripup rirpu ro-ro robbi robbo robo- robop robor robur rompo rompu roomu rorbu roumi roumm rprop rubbi rubim rubio rubor rubup ruiru rumbo rummi rummo rummu rumor rumpo ruomu u-pop ubirr ubobo uiro umbri umbro umiri umour uromi uroob uropi urour urpmi urubu urumi ururi uuuuu