-er eee eek eem eeo eer ees eet eke eko ekr eks ekt eku em- eme emk emm emo emr ems emt emu eo- eoe eok eom eoo eor eos eot eou ere erk erm ero err ers ert eru es- ese esk esm eso esr ess est esu ete etk etm eto etr ets ett etu eu- eue eur eus eut k-t ke- kee kek kem keo ker kes ket kke kkk kkm kkr kks kkt kku kme kmk kmm kmo kms kmt kmu koe kok kom koo kor kos kot kou krk kro krr krs krt kru kse ksk ksm kso ksr kss kst ksu kte ktk ktm kto ktr kts ktt ktu kue kuk kum kur kus kut kuu m-o m-r mee mek mem meo mer mes met meu mke mkk mkm mko mkr mks mkt mku mme mmk mmm mmo mmr mms mmt mmu moe mok mom moo mor mos mot mou mre mrk mrm mro mrr mrs mrt mru mse msk msm mso msr mss mst msu mte mtk mtm mto mtr mts mtt mtu mue muk mum mur mus mut muu oee oem oeo oer oes oet oke okk oko okr oks oku om- ome omm omo omr oms omt omu oo- ook oom ooo oor oos oot or- ore ork orm oro orr ors ort oru os- ose osk osm oso osr oss ost osu ot- ote otk otm oto otr ots ott otu ou- oue ouk oum ouo our ous out re- ree rek rem reo rer res ret reu rke rkk rkm rko rks rkt rku rme rmm rmo rmr rms rmt roe rok rom roo ror ros rot rou rrk rrm rrr rrs rrt rru rse rsk rsm rso rsr rss rst rsu rte rtk rtm rto rtr rts rtt rtu rue ruk rum ruo rur rus rut ruu se- see sek sem seo ser ses set seu sk- ske skk skm sko skr sks skt sku sme smk smm smo smr sms smt smu soe sok som soo sor sos sot sou sr- sre srk srm sro srr srs srt ss- sse ssk ssm sso ssr sss sst ssu ste stk stm sto str sts stt stu sue suk sum suo sur sus sut suu te- tee tek tem teo ter tes tet teu tke tkk tkm tko tkr tks tkt tme tmk tmm tmo tmr tms tmt tmu to- toe tok tom too tor tos tot tou tre trk trm tro trr trs trt tru tse tsk tsm tso tsr tss tst tsu tte ttk ttm tto ttr tts ttt ttu tue tuk tum tuo tur tus tut tuu uee uem uer ues uet uke ukk ukr uku um- ume umm umo umr ums umt umu uoe uok uom uoo uor uos uot ur- ure urk urm uro urr urs urt uru use usk usm uso usr uss ust usu ute utk utm uto utr uts utt utu uue uum uur uus uut uuu