-er a-a a-b a-z aaa aab aae aaj aan aar aau aaz ab- aba abb abe abj abn abr abu abz aea aeb aee aej aen aer aeu aez aja ajb aje ajj ajn ajr aju an- ana anb ane anj ann anr anu anz ar- ara arb are arj arn arr aru arz au- aua aub aue auj aun aur auz az- aza azb aze azn azu azz b-u baa bab bae baj ban bar bau baz bba bbb bbe bbn bbr bbu be- bea beb bee ben ber beu bez bja bjj bjn bjr bju bna bnb bne bnj bnn bnr bnu bnz bra brb bre brj brn brr bru brz bua bub bue buj bun bur buu buz bza bze bzn bzr bzu bzz eaa eab eae eaj ean ear eau eaz eba ebb ebe ebj ebn ebr ebu eea eeb eee een eer eja eju en- ena enb ene enn enr enu enz era erb ere ern err eru erz eu- eua eub eue euj eun eur eze ezr ezz j-z jaa jab jae jaj jan jar jau jaz jba jbj jbr jbu jbz jea jeb jee jej jen jer jeu jez jja jjb jjj jjr jju jna jne jnj jnn jnr jnu jra jrb jrn jrr jrz jub jue jun jur juz naa nab nae naj nan nar nau naz nba nbb nbe nbn nbr nbu ne- nea neb nee nej nen ner neu nez nja nje njn nju nna nnb nne nnn nnu nnz nra nrb nre nrj nrn nrr nru nrz nua nub nue nuj nun nur nuu nzb nze nzz ra- raa rab rae raj ran rar rau raz rba rbb rbe rbn rbr rbu re- rea reb ree ren rer reu rez rja rjr rna rnb rnn rnr rnu rnz rra rrb rrn rrr rru rua rub rue run rur ruu ruz rza rzb rze ua- uaa uab uae uaj uan uar uau uaz uba ubb ube ubn ubr ubu uea ueb uee uen uer un- una unb une unn unr unu ur- ura urb ure urn urr uru urz uua uue uun uur uuu uza uzb uzu zaa zab zaj zan zar zaz zbb zbr zea zeb zee zen zer zez zje zne znn zub zun zur zuz zzr zzz