dddd didi didu diii din- dini dinn dinu dipn dipp dipu dird dirr dpin dpni drin drip drui drup druu dudd dudu duid duin duir dunn duri durn duru duur idid idin idir idun iiii ind- indi indu inid inni innr innu inp- inpi inpp inri inui inun inup ipdi ipid ipin ippr ipri ipur irdp iri- irid irin irip irri irun iuiu iupp n-ii n-up ndnp ndpd ndpr ndri nidd nidi niip niir niiu nind nini nipr niru niur nnnn nnpi nnpr npin nppd npri nrpn nrrd nudd nudi nuin nunn nurd nuri nurn nurp nurr nuru pdpn pdpr piip pind pini pinn pinp pinu pipi pipp piri pirn pirr piru pnin pnpp pnup ppid pppd pppn pppp ppru ppur pri- prid prii prin prnd prnp prpd prrd prri prud pruu pudu puid puin puir puiu pund punu pupi pupu pur- puri purp purr puru ridd ridi riin rind rinn ripd ripi ripp ripr riri rndp rnin rpdp rpii rppn rrrr rrun rudd rudi rudp ruid ruin rund runi runn rupp rurd ruri rurp ruru ruud ruun u-rp uddi udid udin udir udpd udun uipi uirr undi uni- unii unin unir unni upin upnp uppp uppu upri upup urdu urin uriu urni urri urun urup urur uuni uuri uuuu