ttcn tttt ttul tual tuan tuat tuca tucc tuch tudu tuga tugg tugh tugu tuht tuhu tula tull tulu tuna tunc tund tung tunn tunu tuta tutl tutt tutu uaca uald uang uata uath uatu uaua ucad ucal ucan ucat ucca ucdc ucdd ucha ucla ucua ucut udaa udad udal udau udca udun ugal ugcc ugcg uggt ugta uguu uh-d uhcl uhna uhta uhuh ulaa ulad ulan ulcc ulch ulla ulna ulta ultt ulua ulul unaa unac unal unan unat unau unca uncc uncg unch uncl unct unda unga ungu unha unna unth unut utac utah utal utan utau utha uttu utug uulu uuta uuuu