-er -ey a-a a-b a-t aaa aab aae aan aao aar aas aat aay ab- aba abb abe abn abo abr abs abt aby aea aeb aee aen aeo aer aes aet aey an- ana anb ane ann ano anr ans ant any aoa aob aoe aon aoo aor aos aot ar- ara arb are arn aro arr ars art ary as- asa asb ase asn aso asr ass ast asy at- ata atb ate atn ato atr ats att ay- aya aye ayn ayo ayr ays ayt baa bab bae ban bao bar bas bat bay bba bbb bbe bbn bbo bbr bbs bbt bby be- bea beb bee ben beo ber bes bet bey bna bnb bne bnn bno bnr bns bnt boa bob boe bon boo bor bos bot boy bra brb bre brn bro brr brs brt bry bsa bsb bse bsn bso bsr bss bst bsy bta btb bte btn bto btr bts btt bty by- bya bye byn byo byr bys byt eaa eab eae ean eao ear eas eat eba ebb ebe ebn ebo ebr ebs ebt eby eea eeb eee een eeo eer ees eet eey en- ena enb ene enn eno enr ens ent eny eo- eoa eob eoe eon eoo eor eos eot era erb ere ern ero err ers ert ery es- esa esb ese esn eso esr ess est esy eta etb ete etn eto etr ets ett ety eya eye eyn eyo eyr eys eyt naa nab nae nan nao nar nas nat nay nba nbb nbe nbn nbo nbr nbs nbt ne- nea neb nee nen neo ner nes net ney nna nnb nne nnn nno nns nnt no- noa nob noe non noo nor nos not noy nra nrb nre nrn nro nrr nrs nrt nry nsa nsb nse nsn nso nsr nss nst nsy nta ntb nte ntn nto ntr nts ntt nya nye nyn nyo nys nyt nyy oaa oab oae oan oao oar oas oat ob- oba obb obe obn obo obr obs obt oby oea oeb oee oen oeo oer oes oet oey on- ona onb one onn ono onr ons ont ony oo- ooa oob oon ooo oor oos oot or- ora orb ore orn oro orr ors ort ory os- osa osb ose osn oso osr oss ost ot- ota otb ote otn oto otr ots ott oya oye oyo oys ra- raa rab rae ran rao rar ras rat ray rba rbb rbe rbn rbo rbr rbs rbt re- rea reb ree ren reo rer res ret rey rna rnb rnn rno rnr rns rnt rny roa rob roe ron roo ror ros rot roy rra rrb rrn rrr rrs rrt rsa rsb rse rsn rso rsr rss rst rta rtb rte rtn rto rtr rts rtt rty ry- rya rye ryn ryo ryr rys ryy saa sab sae san sao sar sas sat say sba sbb sbe sbn sbo sbr sbs sbt sby se- sea seb see sen seo ser ses set sey sna snb sne snn sno snr sns snt sny soa sob soe son soo sor sos sot soy sr- sra srb sre srn sro srr srs srt sry ss- ssa ssb sse ssn sso ssr sss sst sta stb ste stn sto str sts stt sty sy- sya syb sye syn syr sys syt taa tab tae tan tao tar tas tat tay tba tbb tbe tbn tbo tbr tbs tbt te- tea teb tee ten teo ter tes tet tey tna tnb tne tnn tno tnr tns tnt to- toa tob toe ton too tor tos tot toy tra trb tre trn tro trr trs trt try tsa tsb tse tsn tso tsr tss tst tsy tta ttb tte ttn tto ttr tts ttt tty tya tye tyn tyo tyr tys tyt yaa yab yae yan yao yar yas yat yay ybe ybr ybs yby yea yeb yee yen yeo yer yes yet yey yna yne ynn yns yny yob yoe yon yoo yor yos yot yoy yra yre yrn yro yrs yrt ysa ysb yse yso ysr yss yst ysy yta yte ytn yto ytr yts ytt yyb yye yys yyt yyy