b-r-k bbook blook bloop bloor blorb blorp bo-bo bobko bobok bobr bokko bokok bokor bolko boll- bollo bolok booko borbo borko boro- borok boroo borro brobo broll brolo brook brool brrrr k-p-r k-pop k-rob kbool klopp ko-ko kobol kokko kokor kollo kolob kolol koppl korbo korol korop koror korpo korro kpolo kroll kropp l-pop lobbo lobo- lobor lollo lolol o-r-b obolo oboro obrok okobo okoro ooooo oploo opobo oppol orlok orlop orobo pbook pbrok plook ploop plopp plork po-po polbo polko pollo polop poopo poork poplr popop poppo poro- porro probo proll prolo proor prop- propl propp propr ro-ro robbo robo- robop robor rokkk rollo rolok rprop