bholu bhool bhour bloor blorb blurb blurr bo-bo bo-ho bobr bogor bogu bogur bohol bohor bolho boll- bollo bollu booru borbo borgh borgo borgu boro- boroo borou borro borul bough boul- boulo bourg brlog brloh brobo brogh brohl broll brolo brool brrrr brugg brugh bruhl brull bugol bugoo bulb- bull- bulou bulul buoho burgh burgo burgu burol buroo burro burru g-log ggulu ghoul ghour ghubb globo glogg glogh gloor glour glubb go-go go-lo go-oo gobbo gogol gogro gogul gohl gohog gohor gohur golbo gollu golob golog golol golub golug goobo goooh gorgl gorgo gorlo goruh gough gourl grgur grogg grohl groll groul grrrl grrrr grubb gubbo gubru gugul gulo- gulou guroo gurro gurur hbogo hhhhh hhour ho-ho ho-oh hobol hobor hobro hobub hohol holbr holgh hollo holo- holor holou holub holul horol horro horru hough hu-go hubur huggo huglo huhuh hullo huolu hurll huuru lobbo lobo- lobor logo- logol lohho lohur lollo lolol loobu lough louro lubur lugol lulul luogu lurgg o-r-b obhor oblog obolo oboro oghur ogogo ogugu oh-oh ohour ohrob ollur olour ooooh ooooo orgul orobo orolu orrgo oruro oullo ouoro ourol ro-ro robbo robo- robor robur rogho rohob rohru rollo rorbu rough roull rubor rughh ruhub rullo ubobo ugro- ugrug uh-oh uh-uh uhhoh uhhuh uhuru ullur ululu uluru uroob urour urubu uuuuu