-er -ey a-a a-b aaa aab aae aan aar aas aau aay ab- aba abb abe abn abr abs abu aby aea aeb aee aen aer aes aeu aey an- ana anb ane ann anr ans anu any ar- ara arb are arn arr ars aru ary as- asa asb ase asn asr ass asu asy au- aua aub aue aun aur aus ay- aya aye ayn ayr ays ayu b-u baa bab bae ban bar bas bau bay bba bbb bbe bbn bbr bbs bbu bby be- bea beb bee ben ber bes beu bey bna bnb bne bnn bnr bns bnu bra brb bre brn brr brs bru bry bsa bsb bse bsn bsr bss bsu bsy bua bub bue bun bur bus buu buy by- bya bye byn byr bys byu eaa eab eae ean ear eas eau eba ebb ebe ebn ebr ebs ebu eby eea eeb eee een eer ees eey en- ena enb ene enn enr ens enu eny era erb ere ern err ers eru ery es- esa esb ese esn esr ess esu esy eu- eua eub eue eun eur eus eya eye eyn eyr eys naa nab nae nan nar nas nau nay nba nbb nbe nbn nbr nbs nbu ne- nea neb nee nen ner nes neu ney nna nnb nne nnn nns nnu nra nrb nre nrn nrr nrs nru nry nsa nsb nse nsn nsr nss nsu nsy nua nub nue nun nur nus nuu nuy nya nye nyn nys nyu nyy ra- raa rab rae ran rar ras rau ray rba rbb rbe rbn rbr rbs rbu re- rea reb ree ren rer res reu rey rna rnb rnn rnr rns rnu rny rra rrb rrn rrr rrs rru rsa rsb rse rsn rsr rss rsu rua rub rue run rur rus ruu ruy ry- rya rye ryn ryr rys ryu ryy saa sab sae san sar sas sau say sba sbb sbe sbn sbr sbs sbu sby se- sea seb see sen ser ses seu sey sna snb sne snn snr sns snu sny sr- sra srb sre srn srr srs sry ss- ssa ssb sse ssn ssr sss ssu sua sub sue sun sur sus suu suy sy- sya syb sye syn syr sys syu ua- uaa uab uae uan uar uas uau uay uba ubb ube ubn ubr ubs ubu uby uea ueb uee uen uer ues uey un- una unb une unn unr uns unu uny ur- ura urb ure urn urr urs uru ury usa usb use usn usr uss usu uua uue uun uur uus uuu uys uyu yaa yab yae yan yar yas yau yay ybe ybr ybs yby yea yeb yee yen yer yes yey yna yne ynn yns ynu yny yra yre yrn yrs yru ysa ysb yse ysr yss ysu ysy yua yue yun yur yus yuu yuy yyb yye yys yyu yyy