-er -ey eee eeo eer ees eet eex eey eo- eoe eoo eor eos eot eou ere ero err ers ert eru ery es- ese eso esr ess est esu esx esy ete eto etr ets ett etu etx ety eu- eue eur eus eut eux ex- exe exo exr exs ext exu exx exy eye eyo eyr eys eyt oee oeo oer oes oet oex oey oo- ooo oor oos oot oox or- ore oro orr ors ort oru orx ory os- ose oso osr oss ost osu osx ot- ote oto otr ots ott otu ou- oue ouo our ous out ox- oxo oxt oxx oxy oye oyo oys re- ree reo rer res ret reu rex rey roe roo ror ros rot rou rox roy rrr rrs rrt rru rse rso rsr rss rst rsu rsx rte rto rtr rts rtt rtu rtx rty rue ruo rur rus rut ruu rux ruy rxr rxs ry- rye ryo ryr rys ryu ryy se- see seo ser ses set seu sex sey soe soo sor sos sot sou sox soy sr- sre sro srr srs srt srx sry ss- sse sso ssr sss sst ssu ssx ste sto str sts stt stu stx sty sue suo sur sus sut suu sux suy sxs sxt sxu sy- sye syr sys syt syu syx t-x te- tee teo ter tes tet teu tex tey to- toe too tor tos tot tou tox toy tre tro trr trs trt tru trx try tse tso tsr tss tst tsu tsx tsy tte tto ttr tts ttt ttu ttx tty tue tuo tur tus tut tuu tux tuy txe txs txt txu tye tyo tyr tys tyt uee uer ues uet uey uoe uoo uor uos uot uox ur- ure uro urr urs urt uru urx ury use uso usr uss ust usu usx ute uto utr uts utt utu utx uty uue uur uus uut uuu uxo uxr uxt uxu uyo uys uyu xee xer xes xet xeu xex xoo xor xos xot xox xrt xrx xry xss xst xtr xts xtx xty xue xus xxo xxx xxy xyr xyy yee yeo yer yes yet yex yey yoe yoo yor yos yot you yox yoy yre yro yrs yrt yru yse yso ysr yss yst ysu ysy yte yto ytr yts ytt ytu yue yuo yur yus yut yuu yux yuy yxe yxy yye yys yyt yyu yyy