bbgun brmmm brrrr bruch brugg brugh bruhn brumm brung brunn bruun buchu bucum bucur bugun bumbu bunch bungu bunun burch burcu burgh burgu burn- burru buruc burun ccccc chrng chubb chugh chumb chung chur- churm churn churr churu cnnnn crumb cubub cumbu cumm- curch curug ghubb gnrhr grgur grrrr grubb gruch gubru gummb gungu gunnr gurum gurun gurur h-gun hburn hhhhh hubur hucch hucun huhuh humur hunch hungu hurcn hurm hurum huuru mburu mcgrh mchum mcmug mmccc mmhmm mmmcc mmmmm mrcub muchu mucum mucun mucur mugcr mugur mumcu mummu mumun munch munuc murch murgh murrh murru murum ngugu nguru nu-nu nucmc nughu nuhuh nunch nunun nurun rhbnc rhumb rmnmn rnrmc rughh ruhnu ruhub rummu runch runcu rungu runmc ucgun uchuu ugrug uh-uh uhhuh uhuru umhum ungum ungur unhug unnun unnur unrug unruh unrun unurn urgun urubu urucu uuuuu