dddd didi didu diii diiv din- dini dinn dinu dird dirr divd divi drin drui druu druv drvn dudd dudu duid duin duir dunn duri durn duru duur dvdr dvi- dvii dvin dvir idid idin idir idun idvd iiii ind- indi indu inid inni innr innu inri inui inun iri- irid irin irri irun iuiu ivdr ivin n-ii ndri nidd nidi niir niiu nind nini niru nirv niur nivr nnnn nrrd nudd nudi nuin nunn nurd nuri nurn nurr nuru nurv nvir ridd ridi riin rind rinn riri rnin rrrr rrun rudd rudi ruid ruin rund runi runn rurd ruri ruru ruud ruun ruvi ruvu uddi udid udin udir udun uirr undi uni- unii unin unir univ unni urdu urin uriu urni urri urun urur uuni uuri uuuu uvid uvrd uvri uvvu vidi viii vind vini vinu viri virr viru vivi vnir vrdi vrin vrnn vudi vudu vuir vvvv