a-a a-t a-z aaa aag aar aat aau aaz ag- aga agg agr agt agu agz ar- ara arg arr art aru arz at- ata atg atr att atu atz au- aua aug aur aut auz az- aza azg azt azu azz gaa gag gar gat gau gaz gga ggg ggr ggt ggu ggz gra grg grr grt gru gta gtg gtr gtt gtu gu- gua gug gur gut guu guz gza gzr gzu ra- raa rag rar rat rau raz rga rgg rgr rgt rra rrg rrr rrt rru rta rtg rtr rtt rtu rtz rua rug rur rut ruu ruz rza taa tag tar tat tau taz tga tgg tgr tgt tgu tgz tra trg trr trt tru trz tta ttg ttr ttt ttu tua tug tur tut tuu tuz tza tzu ua- uaa uag uar uat uau uaz uga ugg ugr ugt ugu ur- ura urg urr urt uru urz uta utr utt utu utz uua uug uur uut uuu uza uzu z-g zaa zag zar zat zaz zgg zta ztr zug zur zut zuz zzr zzt zzz