-er eee eeg eek eeo eer ees eet ege egg ego egr egs egt eke ekg eko ekr eks ekt eo- eoe eog eok eoo eor eos eot ere erg erk ero err ers ert es- ese esg esk eso esr ess est ete etg etk eto etr ets ett ge- gee geg gek geo ger ges get ggg ggo ggr ggs ggt gko gks gkt goe gog gok goo gor gos got gre grg grk gro grr grs grt gse gsg gsk gso gsr gss gst gte gtg gtk gto gtr gts gtt k-t ke- kee keg kek keo ker kes ket kgo kgs kke kkk kkr kks kkt koe kog kok koo kor kos kot krg krk kro krr krs krt kse ksg ksk kso ksr kss kst kte ktg ktk kto ktr kts ktt oee oeg oeo oer oes oet oge ogg ogo ogs ogt oke okg okk oko okr oks oo- oog ook ooo oor oos oot or- ore org ork oro orr ors ort os- ose osg osk oso osr oss ost ot- ote otg otk oto otr ots ott re- ree reg rek reo rer res ret rge rgg rgk rgo rgr rgs rgt rke rkg rkk rko rks rkt roe rog rok roo ror ros rot rrg rrk rrr rrs rrt rse rsg rsk rso rsr rss rst rte rtg rtk rto rtr rts rtt se- see seg sek seo ser ses set sge sgg sgk sgo sgr sgs sgt sk- ske skg skk sko skr sks skt soe sog sok soo sor sos sot sr- sre srg srk sro srr srs srt ss- sse ssg ssk sso ssr sss sst ste stg stk sto str sts stt te- tee teg tek teo ter tes tet tge tgg tgk tgo tgr tgs tgt tke tkg tkk tko tkr tks tkt to- toe tog tok too tor tos tot tre trg trk tro trr trs trt tse tsg tsk tso tsr tss tst tte ttg ttk tto ttr tts ttt