-er -ey a-a a-b aaa aab aad aae aaf aan aar aay ab- aba abb abd abe abf abn abr aby ad- ada adb add ade adf adn adr ady aea aeb aed aee aef aen aer aey af- afa afb afd afe aff afn afr afy an- ana anb and ane anf ann anr any ar- ara arb ard are arf arn arr ary ay- aya ayd aye ayf ayn ayr baa bab bad bae baf ban bar bay bba bbb bbd bbe bbf bbn bbr bby bda bdb bdd bde bdf bdr bdy be- bea beb bed bee bef ben ber bey bfa bfb bfd bfe bff bfn bfr bfy bna bnb bnd bne bnf bnn bnr bra brb brd bre brf brn brr bry by- bya byd bye byf byn byr daa dab dad dae daf dan dar day dba dbb dbd dbe dbf dbn dbr dby dda ddb ddd dde ddf ddn ddr ddy de- dea deb ded dee def den der dey dfa dfb dfd dfe dff dfn dfr dna dnb dnd dne dnf dnn dnr dny dra drb drd dre drn drr dry dy- dya dyb dyd dye dyn dyr dyy eaa eab ead eae eaf ean ear eba ebb ebd ebe ebf ebn ebr eby ed- eda edb edd ede edf edn edr edy eea eeb eed eee eef een eer eey ef- efa efb efd efe eff efr en- ena enb end ene enf enn enr eny era erb erd ere erf ern err ery eya eyd eye eyn eyr faa fab fad fae faf fan far fay fba fbb fbd fbe fbf fbn fbr fda fdb fdd fde fdf fdn fdr fea feb fed fee fef fen fer fey ffa ffd ffe fff ffn ffr ffy fna fnb fnd fne fnf fnn fnr fra frb frd fre frf frn frr fry fy- fya fyb fye fyn naa nab nad nae naf nan nar nay nba nbb nbd nbe nbf nbn nbr nda ndb ndd nde ndf ndn ndr ndy ne- nea neb ned nee nef nen ner ney nfa nfb nfd nfe nff nfn nfr nna nnb nne nnf nnn nra nrb nrd nre nrf nrn nrr nry nya nyd nye nyf nyn nyy ra- raa rab rad rae raf ran rar ray rba rbb rbd rbe rbf rbn rbr rda rdb rdd rde rdf rdn rdr rdy re- rea reb red ree ref ren rer rey rfa rfb rfd rfe rff rfn rfr rna rnb rnd rnn rnr rny rra rrb rrd rrf rrn rrr ry- rya ryd rye ryf ryn ryr ryy yaa yab yad yae yaf yan yar yay ybe ybf ybr yby yda yde ydn ydy yea yeb yed yee yef yen yer yey yfa yfd yfe yff yfr yna ynd yne ynn yny yra yre yrf yrn yyb yye yyf yyy