a-a a-b a-z aaa aab aad aag aau aaz ab- aba abb abd abg abu abz ad- ada adb add adg adu adz ag- aga agb agd agg agu agz au- aua aub aud aug auz az- aza azb azd azg azu azz b-u baa bab bad bag bau baz bba bbb bbd bbg bbu bda bdb bdd bdg bdu bdz bga bgb bgd bgg bgu bgz bua bub bud bug buu buz bza bzd bzu bzz daa dab dad dag dau daz dba dbb dbd dbg dbu dbz dda ddb ddd ddg ddu ddz dga dgd dgg dgu dgz dua dub dud dug duz dza dzb dzd dzu g-d gaa gab gad gag gau gaz gba gbd gbg gbu gbz gda gdb gdd gdu gga ggb ggd ggg ggu ggz gu- gua gub gud gug guu guz gza gzu ua- uaa uab uad uag uau uaz uba ubb ubg ubu uda udb udd udg udu uga ugb ugg ugu uua uug uuu uza uzb uzu z-g zaa zab zad zag zaz zbb zgb zgg zub zud zug zuz zzz