-er -ey a-a a-b a-i a-t aaa aab aae aaf aai aao aar aas aat aay ab- aba abb abe abf abi abo abr abs abt aby aea aeb aee aef aei aeo aer aes aet aey af- afa afb afe aff afi afo afr afs aft afy ai- aia aib aie aif aii aio air ais ait aiy aoa aob aoe aof aoi aoo aor aos aot ar- ara arb are arf ari aro arr ars art ary as- asa asb ase asf asi aso asr ass ast asy at- ata atb ate atf ati ato atr ats att ay- aya aye ayf ayi ayo ayr ays ayt baa bab bae baf bai bao bar bas bat bay bba bbb bbe bbf bbi bbo bbr bbs bbt bby be- bea beb bee bef bei beo ber bes bet bey bfa bfb bfe bff bfi bfo bfr bfs bft bfy bi- bia bib bie bif bii bio bir bis bit biy boa bob boe bof boi boo bor bos bot boy bra brb bre brf bri bro brr brs brt bry bsa bsb bse bsf bsi bso bsr bss bst bsy bta btb bte btf bti bto btr bts btt bty by- bya bye byf byi byo byr bys byt eaa eab eae eaf eai eao ear eas eat eba ebb ebe ebf ebi ebo ebr ebs ebt eby eea eeb eee eef eeo eer ees eet eey ef- efa efb efe eff efi efo efr efs eft eia eib eie eif eii eio eir eis eit eo- eoa eob eoe eof eoi eoo eor eos eot era erb ere erf eri ero err ers ert ery es- esa esb ese esf esi eso esr ess est esy eta etb ete etf eti eto etr ets ett ety eya eye eyo eyr eys eyt faa fab fae faf fai fao far fas fat fay fba fbb fbe fbf fbi fbo fbr fbs fbt fea feb fee fef fei feo fer fes fet fey ffa ffe fff ffi ffo ffr ffs fft ffy fia fib fie fif fii fir fis fit foa fob foe fof foi foo for fos fot foy fra frb fre frf fri fro frr frs frt fry fsa fsb fse fsf fsi fso fsr fss fst fta ftb fte ftf fti fto ftr fts ftt fty fy- fya fyb fye fyi fyo i-f ia- iaa iab iae iaf iai iao iar ias iat iba ibb ibe ibf ibi ibo ibr ibs ibt iby ie- iea iee ief iei ier ies iet iey ifa ifb ife iff ifi ifo ifr ifs ift ify iia iib iie iif iii iio iir iis iit io- ioa iob ioe iof ioi ioo ior ios iot ir- ira irb ire irf iri iro irr irs irt iry is- isa isb ise isf isi iso isr iss ist isy ita itb ite itf iti ito its itt ity iya iye iyo iyr iys iyt iyy o-i oaa oab oae oaf oai oao oar oas oat ob- oba obb obe obf obi obo obr obs obt oby oea oeb oee oef oei oeo oer oes oet oey of- ofa ofb ofe off ofi ofo ofr ofs oft oia oib oie oif oii oio oir ois oit oo- ooa oob oof ooi ooo oor oos oot or- ora orb ore orf ori oro orr ors ort ory os- osa osb ose osf osi oso osr oss ost ot- ota otb ote otf oti oto otr ots ott oya oye oyi oyo oys ra- raa rab rae raf rai rao rar ras rat ray rba rbb rbe rbf rbi rbo rbr rbs rbt re- rea reb ree ref rei reo rer res ret rey rfa rfb rfe rff rfi rfo rfr rfs rft ria rib rie rif rii rio rir ris rit riy roa rob roe rof roi roo ror ros rot roy rra rrb rrf rri rrr rrs rrt rsa rsb rse rsf rsi rso rsr rss rst rta rtb rte rtf rti rto rtr rts rtt rty ry- rya rye ryf ryo ryr rys ryy saa sab sae saf sai sao sar sas sat say sba sbb sbe sbf sbi sbo sbr sbs sbt sby se- sea seb see sef sei seo ser ses set sey sfa sfb sfe sff sfi sfo sfr sfs sft sia sib sie sif sii sio sir sis sit soa sob soe sof soi soo sor sos sot soy sr- sra srb sre srf sri sro srr srs srt sry ss- ssa ssb sse ssf ssi sso ssr sss sst sta stb ste stf sti sto str sts stt sty sy- sya syb sye syi syr sys syt taa tab tae taf tai tao tar tas tat tay tba tbb tbe tbf tbi tbo tbr tbs tbt te- tea teb tee tef tei teo ter tes tet tey tfa tfb tfe tff tfi tfo tfr tfs tft tia tib tie tif tii tio tir tis tit tiy to- toa tob toe tof toi too tor tos tot toy tra trb tre trf tri tro trr trs trt try tsa tsb tse tsf tsi tso tsr tss tst tsy tta ttb tte ttf tti tto ttr tts ttt tty tya tye tyf tyo tyr tys tyt yaa yab yae yaf yai yao yar yas yat yay ybe ybf ybi ybr ybs yby yea yeb yee yef yei yeo yer yes yet yey yfa yfe yff yfr yfs yft yie yif yii yio yir yis yit yob yoe yof yoi yoo yor yos yot yoy yra yre yrf yro yrs yrt ysa ysb yse ysi yso ysr yss yst ysy yta yte ytf yto ytr yts ytt yyb yye yyf yys yyt yyy