nira nirt niru nita nitb niti nitr niur nndb nngn nnit nnnn nntn nrab nrna nrrd nrta ntia ntnd ntnu ntru nttr ntui nuan nuba nubi nuda nudd nudi nuin nuit nuna nung nunn nunt nura nurd nuri nurn nurr nurt nuru nutt nutu raab raad raag raan raat raba rabb rabi rabu rada radd radr radt radu raga ragg ragi ragu raia raid raig raii rain rair rait raiu rana rand rang rani rann rant rara rarb rari rata rati ratt ratu raua raub raud raun raut rbbb rbbr rdna rgan rgba rgbi rgit rgtr riaa riab riad riai rian riat riau rib- riba ribu rida ridd ridi riga rigg rigi rigu riia riin rina rind ring rinn riri rita riti ritt ritu rnag rnai rnbr rnin rnnt rntd rnut rrad rrat rrna rrrr rrun rtai rtan rtdt rtnd ruad ruag ruan ruba rubb rubi rubu ruda rudd rudi ruga rugg rugi ruid ruin ruit runa rund rung runi runn runt rura rurd ruri ruru ruta ruti rutt rutu ruud ruun taa- taag taan taar taat taba tabb tabi tabu tada tadg taga tagg tagi tagu taia taig tain tair tait tana tand tang tani tann tant tanu tara tarb tard targ tari tarn tarr tart taru tata tatb tati tatr tatt tatu taua taub taur taut tbar tbit tbrb tbta tddb tdna tdra tdri tiaa tiab tian tiar tiba tibi tibu tidd tiga tigi tigr tiit tiiu tina tind ting tini tinn tint tinu tira tirb tird tiri tirr tiru tita titi titt titu tnag tndd tnut traa trab trad trag trai tran trat trau tri- tria trib trig trin trit trna trng trra trtr trub trud trug trun trut truu ttab ttbb tttt tuan tuar tuat tuba tubb tubr tubu tudi tudu tuga tugg tugu tuig tuin tuit tuiu tuna tunb tund tung tuni tunn tunu tura turb turd turg turi turn turr turt turu tuta tuti tutt tutu uair uang uart uaru uata uatu uaua ubar ubba ubbi ubid ubii ubir ubit ubra ubud udaa udad udar udau uddi udgb udid udig udin udir udra udun ugab ugar uggt ugia ugni ugra ugri ugta ugur uguu uint uira uirr unaa unai unan unar unat unau unbd unda undi unga ungu uni- unia unii unin unir unit unna unni unra untb unut urad urai uran urat urau urba urbi urda urdu urga urgi urgu uria urib urin uriu urna urni urra urri urun urur urut utai utan utau utia utid utin utri utti uttu utug uuni uuri uuta uuuu