-hou dddd dhin dhod dhor dhrn dhun dhur didi dido didu dihu diii din- dinh dini dinn dino dinu dion dior diou dird dirr dod- dodd dodi dodo dohr doid doin dond doni donn dono donr dood doon door dord dori dorn doro dorr doru doud doun dour drih drin drnh drno drod droh dron drou drui druu dudd dudo dudu duhr duhu duid duin duir dunn duno duo- duon duri durn duro duru duur h-ii hdod hdri hhhh hidi hihi hiho hiiu hind hinn hino hird hiri hirn hiro hiru hndd hnoi hodh hodi hodr hohn hoho hoid hoir hond honi hono honu hood hoon hoor hord hori horn horo horr houd hour hrdn hrid hrod hron hrud hrun hudd hudi hudo hudu huhi huhn huhu huid huir hund hunh huni huon huor hurd huri hurn huro hurr huru i-no iddo idid idin idio idir idno idon idro idun iduo ihdr ihrd ihud ihuo iiii iiio iino iioi iioo ind- indi indo indu inhd inid inni inno innr innu ino- inoi inon inor inou inri inro inui inun iod- iodd iodo ioii ioio ioni ionn iono iooi iooo iori ioun irdo iri- irid irin irio irod iroh iron irri irun iuiu iuno n-ii nddo ndor ndri nhnn nhon nidd nidi nido niir niiu nind ninh nini nino nioh nion nioo niou niro niru niur nnnn nodi nodo nodu nohn noho noid noin noio noir non- noni nonn nono nonu noo- noon nooo noor nor- nord nori norn noro norr nouh noun nour nron nrrd nudd nudi nudo nuhi nuin nunn nuno nuon nurd nuri nurn nurr nuru oddd oddi odin odio odir odiu odoh odon odoo odor odou odur ohhi ohho ohid ohio ohno ohoh ohrn oido oiii oion ondi ondo onir onni onno onod onon onor onur oodi ooho ooid oooh oooo oord ordn ordo ordu ori- orid orin orio orni orno oro- oron oror orri orro oudh ouii ouin ouir oun- ound our- ourn ouro ouu- rdio rhin rhio rhod rhoh rhon rhun ridd ridi rido riho riin rind rinn rino rion riou riri rnin rnod rodd rodi rodo rohn rohr rohu roid roin roio roir roiu rond roni rono rood rooi roon roor rori roro roru roud rouh roun rrrr rrun rudd rudi rudo ruhh ruhi ruhn ruhr ruid ruin rund runi runn runo rurd ruri ruro ruru ruud ruun uddi udid udin udir udoh udon udoo udun uh-d uhid uhno uhoh uhuh uirr undi undo uni- unii unin unio unir unni unno unon unro uor- urdu urho urin uriu urni uro- uroo urrh urri urun urur uuni uuno uuri uuuu