d-rod ddddd dhond dhoon dhuhr dhund dhunn do-do dodon dodoo dodro dohrn dondo donho donon donor doodo doorn dorno doron dorud douro drood droon drouh droun duddo dudon dudou duhon dundo dunno dunod dunun durno duron duruh hhhhh hhour ho-ho ho-oh hoddu hodhr hodod hodur hondo honno honor honud hoond hoord hoorn horno horod horon horro horru hound hourd hudud hudur huhuh huorn huron huuru ndour nduru nnooo no-do no-no noduh nohno nohor non-u nondo nonno nonoh noonu noord nordo noron norro norun nu-nu nudur nuhuh nunon nunun nuoro nurun oddur odour odudu oduro oh-oh ohorn ohour onond onoon onorn onour ooooh ooooo ordon ordro ornon orodo orono oruro oudon ouoro ourno rhod- rhodo rhoon ro-ro rodon rodor rohod rohru rohun rondo ronno roodu roond round rudno ruhnu rundu runo- runon uh-oh uh-uh uhdoh uhhoh uhhuh uhuru undun undur unnun unnur unoor unorn unruh unrun unurn urour uuuuu