a-a a-b a-z aaa aab aag aah aar aau aay aaz ab- aba abb abg abh abr abu aby abz ag- aga agb agg agh agr agu agy agz aha ahb ahg ahh ahr ahu ahy ahz ar- ara arb arg arh arr aru ary arz au- aua aub aug auh aur auz ay- aya ayh ayr ayu ayz az- aza azb azg azu azy azz b-u baa bab bag bah bar bau bay baz bba bbb bbg bbh bbr bbu bby bga bgb bgg bgh bgr bgu bgz bha bhb bhg bhh bhr bhu bra brb brg brh brr bru bry brz bua bub bug buh bur buu buy buz by- bya byg byh byr byu byz bza bzh bzr bzu bzz gaa gab gag gah gar gau gay gaz gba gbg gbh gbr gbu gby gbz gga ggb ggg ggh ggr ggu ggz gha ghb ghg ghh ghr ghz gra grb grg grh grr gru gry gu- gua gub gug gur guu guy guz gy- gya gyb gyr gza gzr gzu haa hab hag hah har hau hay haz hba hbb hbg hbh hbr hbu hby hbz hga hgb hgg hgh hgr hgu hgy hha hhb hhg hhh hhr hhu hhy hhz hr- hra hrb hrg hrh hrr hru hrz hua hub hug huh hur huu huy huz hy- hya hyb hyg hyh hyr hyy hzy ra- raa rab rag rah rar rau ray raz rba rbb rbg rbh rbr rbu rga rgb rgg rgh rgr rh- rha rhb rhg rhh rhr rhu rra rrb rrg rrh rrr rru rua rub rug ruh rur ruu ruy ruz ry- rya ryg ryr ryu ryy ryz rza rzb rzy ua- uaa uab uag uah uar uau uay uaz uba ubb ubg ubh ubr ubu uby uga ugb ugg ugh ugr ugu uha uhb uhh uhr uhu uhy ur- ura urb urg urr uru ury urz uua uug uur uuu uyu uza uzb uzh uzu yaa yab yag yah yar yau yay yaz ybg ybr yby ybz yga yha yhu yra yrg yru yua yug yuh yur yuu yuy yyb yyg yyu yyy yyz yzb yzr yzu yzy z-g zaa zab zag zah zar zay zaz zbb zbr zby zgb zgg zha zhr zhu zrh zub zug zur zuz zzr zzy zzz