-er eee eeg eek eer ees eet ege egg egi egr egs egt eie eig eii eik eir eis eit eke ekg eki ekr eks ekt ere erg eri erk err ers ert es- ese esg esi esk esr ess est ete etg eti etk etr ets ett ge- gee geg gei gek ger ges get ggg ggi ggr ggs ggt gie gig gii gik gir gis git gks gkt gre grg gri grk grr grs grt gse gsg gsi gsk gsr gss gst gte gtg gti gtk gtr gts gtt ie- iee ieg iei iek ier ies iet ige igg igi igk igr igs igt iie iii iir iis iit ike iki ikk ikr iks ikt ir- ire irg iri irk irr irs irt is- ise isg isi isk isr iss ist ite itg iti itk its itt k-t ke- kee keg kei kek ker kes ket kgi kgs kie kig kii kik kir kis kit kke kki kkk kkr kks kkt krg kri krk krr krs krt kse ksg ksi ksk ksr kss kst kte ktg ktk ktr kts ktt re- ree reg rei rek rer res ret rge rgg rgi rgk rgr rgs rgt rie rig rii rik rir ris rit rke rkg rkk rks rkt rrg rri rrk rrr rrs rrt rse rsg rsi rsk rsr rss rst rte rtg rti rtk rtr rts rtt se- see seg sei sek ser ses set sge sgg sgi sgk sgr sgs sgt sie sig sii sik sir sis sit sk- ske skg ski skk skr sks skt sr- sre srg sri srk srr srs srt ss- sse ssg ssi ssk ssr sss sst ste stg sti stk str sts stt te- tee teg tei tek ter tes tet tge tgg tgi tgk tgr tgs tgt tie tig tii tik tir tis tit tke tkg tkk tkr tks tkt tre trg tri trk trr trs trt tse tsg tsi tsk tsr tss tst tte ttg tti ttk ttr tts ttt