bloom bloor blorb blurb blurr bo-bo bobr bogor bogu bogur boll- bollo bollu bombo bomlo boomb booru borbo borgo borgu bormo boro- borom boroo borou borro borul borum boul- boulo bouml bourg brlog brmmm brobo broll brolo brom- bromo brool broom brrrr brugg brull brumm bugol bugoo bulb- bull- bulou bulul bumbo bumbu burgo burgu burol buroo burro burru g-log ggulu globo glogg glomb gloom gloor glour glubb go-go go-lo go-oo gobbo gogol gogro gogul golbo gollu golob golog golol golom golub golug gombo gomol gomor gomur goobo gorgl gorgo gorlo gourl grgur grogg groll gromo groom groul grrrl grrrr grubb grumo gubbo gubru gugul gulo- gulom gulou gumbo gummb gummo guroo gurro gurum gurur lbomb lobbo lobo- lobor logml logo- logol logum lollo lolol lombo loobu loomb lorom lorum louro lubur lugol lulom lulul lumb- lumbo luogu lurgg mbogo mbolo mboro mbulu mburu mglur mmmmm mobor mobro mogol mogul molgg mollo mollu molog molor mombo mombu momlu moogo mooll moolu mooro morbo mormo moror morou morro morum moulu mrmom mrorr mugur mullo mulug mulur mumbo mumlu mummu murgo murlo murol murom muror murro murru murum o-r-b oblog obolo oboro obrom ogogo ogugu ollur olomu olour olumu omoro omulu ooooo orbom orgul ormur orobo orolu oromo orrgo orrum oruro oullo ouoro ourol ro-ro robbo robo- robor robur rollo rolmo roomu rorbu roull roumm rubor rullo rumbo rummo rummu rumor ruomu ubobo ugro- ugrug ullur ulrum ululu uluru umblu umbro umour uroob urour urubu uuuuu