a-a a-b a-z aaa aab aag aan aau aaz ab- aba abb abg abn abu abz ag- aga agb agg agn agu agz an- ana anb ang ann anu anz au- aua aub aug aun auz az- aza azb azg azn azu azz b-u baa bab bag ban bau baz bba bbb bbg bbn bbu bga bgb bgg bgn bgu bgz bna bnb bng bnn bnu bnz bua bub bug bun buu buz bza bzn bzu bzz gaa gab gag gan gau gaz gba gbg gbn gbu gbz gga ggb ggg ggn ggu ggz gna gnb gnn gnu gu- gua gub gug gun guu guz gza gzu naa nab nag nan nau naz nba nbb nbg nbn nbu nga ngb ngg ngn ngu nna nnb nng nnn nnu nnz nua nub nug nun nuu nzb nzg nzz ua- uaa uab uag uan uau uaz uba ubb ubg ubn ubu uga ugb ugg ugn ugu un- una unb ung unn unu uua uug uun uuu uza uzb uzu z-g zaa zab zag zan zaz zbb zgb zgg znn zub zug zun zuz zzz