-er -ey a-a a-b a-t aaa aab aae aaf aao aar aas aat aay ab- aba abb abe abf abo abr abs abt aby aea aeb aee aef aeo aer aes aet aey af- afa afb afe aff afo afr afs aft afy aoa aob aoe aof aoo aor aos aot ar- ara arb are arf aro arr ars art ary as- asa asb ase asf aso asr ass ast asy at- ata atb ate atf ato atr ats att ay- aya aye ayf ayo ayr ays ayt baa bab bae baf bao bar bas bat bay bba bbb bbe bbf bbo bbr bbs bbt bby be- bea beb bee bef beo ber bes bet bey bfa bfb bfe bff bfo bfr bfs bft bfy boa bob boe bof boo bor bos bot boy bra brb bre brf bro brr brs brt bry bsa bsb bse bsf bso bsr bss bst bsy bta btb bte btf bto btr bts btt bty by- bya bye byf byo byr bys byt eaa eab eae eaf eao ear eas eat eba ebb ebe ebf ebo ebr ebs ebt eby eea eeb eee eef eeo eer ees eet eey ef- efa efb efe eff efo efr efs eft eo- eoa eob eoe eof eoo eor eos eot era erb ere erf ero err ers ert ery es- esa esb ese esf eso esr ess est esy eta etb ete etf eto etr ets ett ety eya eye eyo eyr eys eyt faa fab fae faf fao far fas fat fay fba fbb fbe fbf fbo fbr fbs fbt fea feb fee fef feo fer fes fet fey ffa ffe fff ffo ffr ffs fft ffy foa fob foe fof foo for fos fot foy fra frb fre frf fro frr frs frt fry fsa fsb fse fsf fso fsr fss fst fta ftb fte ftf fto ftr fts ftt fty fy- fya fyb fye fyo oaa oab oae oaf oao oar oas oat ob- oba obb obe obf obo obr obs obt oby oea oeb oee oef oeo oer oes oet oey of- ofa ofb ofe off ofo ofr ofs oft oo- ooa oob oof ooo oor oos oot or- ora orb ore orf oro orr ors ort ory os- osa osb ose osf oso osr oss ost ot- ota otb ote otf oto otr ots ott oya oye oyo oys ra- raa rab rae raf rao rar ras rat ray rba rbb rbe rbf rbo rbr rbs rbt re- rea reb ree ref reo rer res ret rey rfa rfb rfe rff rfo rfr rfs rft roa rob roe rof roo ror ros rot roy rra rrb rrf rrr rrs rrt rsa rsb rse rsf rso rsr rss rst rta rtb rte rtf rto rtr rts rtt rty ry- rya rye ryf ryo ryr rys ryy saa sab sae saf sao sar sas sat say sba sbb sbe sbf sbo sbr sbs sbt sby se- sea seb see sef seo ser ses set sey sfa sfb sfe sff sfo sfr sfs sft soa sob soe sof soo sor sos sot soy sr- sra srb sre srf sro srr srs srt sry ss- ssa ssb sse ssf sso ssr sss sst sta stb ste stf sto str sts stt sty sy- sya syb sye syr sys syt taa tab tae taf tao tar tas tat tay tba tbb tbe tbf tbo tbr tbs tbt te- tea teb tee tef teo ter tes tet tey tfa tfb tfe tff tfo tfr tfs tft to- toa tob toe tof too tor tos tot toy tra trb tre trf tro trr trs trt try tsa tsb tse tsf tso tsr tss tst tsy tta ttb tte ttf tto ttr tts ttt tty tya tye tyf tyo tyr tys tyt yaa yab yae yaf yao yar yas yat yay ybe ybf ybr ybs yby yea yeb yee yef yeo yer yes yet yey yfa yfe yff yfr yfs yft yob yoe yof yoo yor yos yot yoy yra yre yrf yro yrs yrt ysa ysb yse yso ysr yss yst ysy yta yte ytf yto ytr yts ytt yyb yye yyf yys yyt yyy