rntd rnut rrad rrat rred rrna rrrr rrun rtan rtca rtcc rtce rtdt rtee rtnd ruad ruan ruca ruce ruct ruda rudd rude rued ruen ruer ruet runa runc rund rune runn runt rura rurc rurd rure ruru ruta rute rutt rutu ruud ruun taa- taan taar taat taca tacc tace tact tada tade taec taen taer tana tand tane tann tant tanu tara tarc tard tare tarn tarr tart taru tata tate tatr tatt tatu taua tauc taue taur taut tcad tcca tccc tccu tcdd tcnn tctc tdac tdna tdra teac tead tean tear teat teca tecr tect teda tedd tede teec teed teen teer teet tena tenc tend tene tenn tent tenu ter- tera terc tere tern terr teru teta tete tetr tett tetu teut tnca tncc tndd tnut traa trac trad trae tran trat trau trca trcc tre- trea trec tred tree tren tret treu trna trra trtc trte trtr truc trud true trun trut truu ttcn tten tter tttt tuae tuan tuar tuat tuca tucc tude tudu tuen tuer tuet tuna tunc tund tune tunn tunu tura turc turd ture turn turr turt turu tuta tute tutt tutu uaca uarc uart uaru uata uatu uaua ucad ucan ucar ucat ucca ucdc ucdd ucea ucrc ucua ucut udaa udad udar udau udca udea uden uder udet udra udun ueda uend unaa unac unan unar unat unau unca uncc unce unct unda unde unec uned unee unen uner unna unne unra unte unut urac urad uran urat urau urca urda urde urdu ure- urea ured uret urna urne urra urre urte urun urur urut utac utan utau utec uter utne uttu uuen uuta uuuu