-er -ey a-a a-t aaa aae aao aar aas aat aax aay aea aee aeo aer aes aet aex aey aoa aoe aoo aor aos aot aox ar- ara are aro arr ars art arx ary as- asa ase aso asr ass ast asx asy at- ata ate ato atr ats att atx ax- axa axe axo axr axs axt axx ay- aya aye ayo ayr ays ayt ayx eaa eae eao ear eas eat eax eea eee eeo eer ees eet eex eey eo- eoa eoe eoo eor eos eot era ere ero err ers ert ery es- esa ese eso esr ess est esx esy eta ete eto etr ets ett etx ety ex- exa exe exo exr exs ext exx exy eya eye eyo eyr eys eyt oaa oae oao oar oas oat oax oea oee oeo oer oes oet oex oey oo- ooa ooo oor oos oot oox or- ora ore oro orr ors ort orx ory os- osa ose oso osr oss ost osx ot- ota ote oto otr ots ott ox- oxa oxo oxt oxx oxy oya oye oyo oys ra- raa rae rao rar ras rat rax ray re- rea ree reo rer res ret rex rey roa roe roo ror ros rot rox roy rra rrr rrs rrt rsa rse rso rsr rss rst rsx rta rte rto rtr rts rtt rtx rty rxr rxs ry- rya rye ryo ryr rys ryy saa sae sao sar sas sat sax say se- sea see seo ser ses set sex sey soa soe soo sor sos sot sox soy sr- sra sre sro srr srs srt srx sry ss- ssa sse sso ssr sss sst ssx sta ste sto str sts stt stx sty sxs sxt sy- sya sye syr sys syt syx t-x taa tae tao tar tas tat tax tay te- tea tee teo ter tes tet tex tey to- toa toe too tor tos tot tox toy tra tre tro trr trs trt trx try tsa tse tso tsr tss tst tsx tsy tta tte tto ttr tts ttt ttx tty txe txs txt tya tye tyo tyr tys tyt xaa xar xas xat xee xer xes xet xex xoa xoo xor xos xot xox xrt xrx xry xsa xss xst xtr xts xtx xty xxo xxx xxy xyr xyy yaa yae yao yar yas yat yax yay yea yee yeo yer yes yet yex yey yoe yoo yor yos yot yox yoy yra yre yro yrs yrt ysa yse yso ysr yss yst ysy yta yte yto ytr yts ytt yxa yxe yxy yye yys yyt yyy