-er -ey a-a a-b a-z aaa aab aae aan aar aay aaz ab- aba abb abe abn abr aby abz aea aeb aee aen aer aey aez an- ana anb ane ann anr any anz ar- ara arb are arn arr ary arz ay- aya aye ayn ayr ayz az- aza azb aze azn azy azz baa bab bae ban bar bay baz bba bbb bbe bbn bbr bby be- bea beb bee ben ber bey bez bna bnb bne bnn bnr bnz bra brb bre brn brr bry brz by- bya bye byn byr byz bza bze bzn bzr bzz eaa eab eae ean ear eaz eba ebb ebe ebn ebr eby eea eeb eee een eer eey en- ena enb ene enn enr eny enz era erb ere ern err ery erz eya eye eyn eyr eze ezr ezz naa nab nae nan nar nay naz nba nbb nbe nbn nbr ne- nea neb nee nen ner ney nez nna nnb nne nnn nnz nra nrb nre nrn nrr nry nrz nya nye nyn nyy nzb nze nzz ra- raa rab rae ran rar ray raz rba rbb rbe rbn rbr re- rea reb ree ren rer rey rez rna rnb rnn rnr rny rnz rra rrb rrn rrr ry- rya rye ryn ryr ryy ryz rza rzb rze rzy yaa yab yae yan yar yay yaz ybe ybr yby ybz yea yeb yee yen yer yey yez yna yne ynn yny yra yre yrn yyb yye yyy yyz yzb yzr yzy zaa zab zan zar zay zaz zbb zbr zby zea zeb zee zen zer zez zne znn zzr zzy zzz