-er eee eeg een eer ees eex ege egg egn egr egs egx en- ene eng enn enr ens ere erg ern err ers es- ese esg esn esr ess esx ex- exe exr exs exx ge- gee geg gen ger ges gex ggg ggn ggr ggs gne gnn gnr gns gre grg grn grr grs grx gse gsg gsn gsr gss gsx gxs ne- nee neg nen ner nes nex nge ngg ngn ngs nne nng nnn nns nre nrg nrn nrr nrs nrx nse nsg nsn nsr nss nsx re- ree reg ren rer res rex rge rgg rgn rgr rgs rgx rng rnn rnr rns rrg rrn rrr rrs rse rsg rsn rsr rss rsx rxr rxs se- see seg sen ser ses sex sge sgg sgn sgr sgs sgx sne sng snn snr sns sr- sre srg srn srr srs srx ss- sse ssg ssn ssr sss ssx sxn sxs xee xeg xen xer xes xex xge xns xrx xss xxx