-er eee eeg eeo eer ees ege egg egi ego egr egs eie eig eii eio eir eis eo- eoe eog eoi eoo eor eos ere erg eri ero err ers es- ese esg esi eso esr ess ge- gee geg gei geo ger ges ggg ggi ggo ggr ggs gie gig gii gio gir gis goe gog goi goo gor gos gre grg gri gro grr grs gse gsg gsi gso gsr gss ie- iee ieg iei ier ies ige igg igi igo igr igs iie iii iio iir iis io- ioe iog ioi ioo ior ios ir- ire irg iri iro irr irs is- ise isg isi iso isr iss o-i oee oeg oei oeo oer oes oge ogg ogi ogo ogs oie oii oio oir ois oo- oog ooi ooo oor oos or- ore org ori oro orr ors os- ose osg osi oso osr oss re- ree reg rei reo rer res rge rgg rgi rgo rgr rgs rie rig rii rio rir ris roe rog roi roo ror ros rrg rri rrr rrs rse rsg rsi rso rsr rss se- see seg sei seo ser ses sge sgg sgi sgo sgr sgs sie sig sii sio sir sis soe sog soi soo sor sos sr- sre srg sri sro srr srs ss- sse ssg ssi sso ssr sss