-hou bbbb bbdd bbdo bbrg bd-r bddh bdog bhog bhor bhur bhuu bobb bobo bobu bodb bodh bodo bodu bogd bogg bogh bogo bohd boho bohr bohu boob bood boog booh boor bor- bord borg borh boro borr boru boud bouh bour brdo brob brod brog broh broo bror brou brrr brud brug bruh bubb bubo bubu budb budd budg budo budu bugg bugh bugo buho buhr bur- burb burd burg burh buro burr buru d-bo dddd ddub dhod dhor dhur dobb dobu dod- dodd dodg dodo dog- dogg dogh dogo dogu dohr doob dood door dord doro dorr doru doub doud doug dour drob drod drog droh drou drub drug druu dub- dubb dubh dubu dudd dudo dudu dugu duhr duhu duo- durg duro duru duur gbbo gddb gdor gggg gghg ghug gobo godo gogh gogo gohb good goog goor gorb gord gorg goro gorr gou- goud goug gour grbr grob grod grog groh groo gror grou grrr grub grug grur gubb gubu gudo gudu gugb gugg gugh gugu guhr gurb gurd gurg gurh guro gurr guru hdod hhgg hhhh hobo hodh hodr hogg hogh hogo hogu hoho hood hoor hord horg horo horr houd hour hrob hrod hrud hubb hubo hudd hudo hudu hugg hugh hugo huhu huor hurd huro hurr huru huub obbo obor obrh obro obuh odbo oddd odoh odoo odor odou odur ogb ogdh ogod ogog ogou ogro ohgr ohho ohob ohoh ooho oooh oooo oord orbb orbo orbu ordo ordu orgo oro- oror orro orub oudh ough our- ouro ouu- rbbb rbbr rbgh rboh rhbg rhob rhod rhog rhoh rhug rob- robb robo robu rodd rodo rogg rogh rogo rohr rohu roob rood roog roor roro roru roub roud rouh rrrr rubb rubu rudd rudo rugg rugh ruhh ruhr rurd ruro ruru ruud ubbo ubod ubud udgb udoh udoo uggo ugod ugro ugur uguu uh-d uhoh uhuh uor- urdu urgh urgu urho uro- uroo urrh urur uuuu