-er eee eeg eep eer ees ege egg egi egp egr egs eie eig eii eip eir eis ep- epe epg epi epp epr eps ere erg eri erp err ers es- ese esg esi esp esr ess g-p ge- gee geg gei gep ger ges ggg ggi ggp ggr ggs gie gig gii gip gir gis gpe gpg gpi gpp gpr gps gre grg gri grp grr grs gse gsg gsi gsp gsr gss ie- iee ieg iei iep ier ies ige igg igi igp igr igs iie iii iip iir iis ipe ipg ipi ipp ipr ips ir- ire irg iri irp irr irs is- ise isg isi isp isr iss p-p pee peg pei pep per pes pge pgg pgi pgp pgr pgs pie pig pii pip pir pis ppe ppg ppi ppp ppr pps pre prg pri prp prr prs ps- pse psg psi psp psr pss re- ree reg rei rep rer res rge rgg rgi rgp rgr rgs rie rig rii rip rir ris rpe rpg rpi rpp rpr rps rrg rri rrp rrr rrs rse rsg rsi rsp rsr rss se- see seg sei sep ser ses sge sgg sgi sgp sgr sgs sie sig sii sip sir sis spe spg spi spp spr sps sr- sre srg sri srp srr srs ss- sse ssg ssi ssp ssr sss