-hou bbbb bbdd bbdo bd-r bddh bdii bdmi bdrm bhim bhir bhoi bhor bhur bhuu bibb bibi bibo bidi bido bidr bidu bihi bihu bimo bio- bioi biou birb bird biri biro birr biru bmdb bmir bmmi bobb bobi bobo bobu bodb bodh bodi bodo bodu bohd bohm boho bohr bohu boi- boid boii boim boiu bomb bomi bomu boob bood booh boom boor bor- bord borh bori borm boro borr boru boud bouh boum bour brdm brdo brid brih brim brio brob brod broh brom broo bror brou brrm brrr brud bruh brum bubb bubi bubo bubu budb budd budi budo budu buhi buho buhr buid buir buiu bum- bumb bur- burb burd burh buri burm buro burr buru d-bo dddd ddub dhod dhor dhur dibb dibo didi dido didu dihu diii dimi dimm dimo dimu dior diou dird dirr dmrb dobb dobi dobu dod- dodd dodi dodo dohm dohr doid domb domi domm domo doob dood doom door dord dori dorm doro dorr doru doub doud doum dour drib drih drob drod droh drom drou drub drui drum druu dub- dubb dubh dubu dudd dudo dudu duhr duhu duid duir dumb dumh dumi dumm duo- duri duro duru duur h-ii hbio hdmi hdod hdri hdrm hhhh hibi hibu hidi hihi hiho hiiu himd himu hiob hird hiri hirm hiro hiru hmhb hmmm hmri hobo hodh hodi hodr hohm hoho hoid hoir hom- homo homr homu hood hoom hoor hord hori horo horr houd hour hrib hrid hrob hrod hrud hubb hubi hubo hudd hudi hudo hudu huhi huhu huib huid huir humh humm humo huor hurd huri huro hurr huru huub ibbm ibdo ibid ibim ibrd ibri ibro idbm iddm iddo idid idio idir idro idub iduo ihdr ihmo ihob ihrd ihub ihud ihuo iiii iiio iioi iioo iium imbi imdb imdi imhi imho imid imir immi immo imod imou imri imro imrr iobi iod- iodd iodo ioii ioio iomo iooi iooo iori irbm irdo iri- irid irio irmo irob irod iroh irri iuiu mbdb mbim mbio mbou mddm mdii mdud mhmm mhmr mhor mid- midi mido mihi miho mihr miii miio mim- mimd mimi mimo mio- mird miri miro mirr miru miui mmdb mmdi mmhi mmhm mmii mmmd mmmh mmmm mmod mmor mobb mobi mobo modd modh modi modo modu mohi mohm moho mohr mohu moii moio moir momi momo momu moob mood moor morb mord mori moro moru moud mour mrbb mrbm mrdd mrmd mrud mubi mubo mudd mudi mudu muhi muhr muhu muid muir mumm mumo mumu murd muri muro murr muru obbo obid oboi obor obrh obri obro obuh odbo oddd oddi odio odir odiu odmr odoh odom odoo odor odou odum odur ohhi ohho ohid ohio ohob ohoh ohum oido oiii oimb oium ombo ombu omdb omid omim omio omo- omoi omoo omor omri omro omuo oobi oodi ooho ooid oooh oooo oord orbb orbi orbo orbu ordo ordu ori- orid orio ormo oro- orom oror orri orro orub orum oudh ouii ouir oumi our- ouro ouu- rbbb rbbr rboh rdbm rdio rhib rhim rhio rhob rhod rhoh rhum rib- ribo ribu ridd ridi rido riho rimi rimm rimo rimu riom riou riri rob- robb robi robo robu rodd rodi rodo rohm rohr rohu roid roio roir roiu romb romd romi romm romo roob rood rooi room roor rori roro roru roub roud rouh roum rrrr rrum rubb rubi rubu rudd rudi rudo ruhh ruhi ruhm ruhr ruid rumb rumi rumm rumo rurd ruri ruro ruru ruud ubbi ubbo ubid ubii ubir ubod ubud uddi udid udim udir udoh udoo uh-d uhid uhoh uhuh uirr umb- umbi umbo ummo umor umri uomo uor- urbi urdu urho urib urim uriu urmi uro- urom uroo urrh urri urum urur uuri uuuu