a-a a-b a-z aaa aab aag aah aan aar aau aaz ab- aba abb abg abh abn abr abu abz ag- aga agb agg agh agn agr agu agz aha ahb ahg ahh ahn ahr ahu ahz an- ana anb ang anh ann anr anu anz ar- ara arb arg arh arn arr aru arz au- aua aub aug auh aun aur auz az- aza azb azg azn azu azz b-u baa bab bag bah ban bar bau baz bba bbb bbg bbh bbn bbr bbu bga bgb bgg bgh bgn bgr bgu bgz bha bhb bhg bhh bhr bhu bna bnb bng bnn bnr bnu bnz bra brb brg brh brn brr bru brz bua bub bug buh bun bur buu buz bza bzh bzn bzr bzu bzz gaa gab gag gah gan gar gau gaz gba gbg gbh gbn gbr gbu gbz gga ggb ggg ggh ggn ggr ggu ggz gha ghb ghg ghh ghn ghr ghz gna gnb gnn gnr gnu gra grb grg grh grn grr gru gu- gua gub gug gun gur guu guz gza gzr gzu haa hab hag hah han har hau haz hba hbb hbg hbh hbn hbr hbu hbz hga hgb hgg hgh hgn hgr hgu hha hhb hhg hhh hhn hhr hhu hhz hna hnb hng hnh hnn hnu hnz hr- hra hrb hrg hrh hrn hrr hru hrz hua hub hug huh hun hur huu huz naa nab nag nah nan nar nau naz nba nbb nbg nbn nbr nbu nga ngb ngg ngh ngn ngu nha nhb nhg nhh nhn nhr nhu nhz nna nnb nng nnh nnn nnu nnz nra nrb nrg nrn nrr nru nrz nua nub nug nuh nun nur nuu nzb nzg nzz ra- raa rab rag rah ran rar rau raz rba rbb rbg rbh rbn rbr rbu rga rgb rgg rgh rgn rgr rh- rha rhb rhg rhh rhn rhr rhu rna rnb rng rnh rnn rnr rnu rnz rra rrb rrg rrh rrn rrr rru rua rub rug ruh run rur ruu ruz rza rzb ua- uaa uab uag uah uan uar uau uaz uba ubb ubg ubh ubn ubr ubu uga ugb ugg ugh ugn ugr ugu uha uhb uhh uhr uhu un- una unb ung unh unn unr unu ur- ura urb urg urn urr uru urz uua uug uun uur uuu uza uzb uzh uzu z-g zaa zab zag zah zan zar zaz zbb zbr zgb zgg zha zhr zhu znn zrh zub zug zun zur zuz zzr zzz