-er eee eeg eep eer ees ege egg egp egr egs ep- epe epg epp epr eps ere erg erp err ers es- ese esg esp esr ess g-p ge- gee geg gep ger ges ggg ggp ggr ggs gpe gpg gpp gpr gps gre grg grp grr grs gse gsg gsp gsr gss p-p pee peg pep per pes pge pgg pgp pgr pgs ppe ppg ppp ppr pps pre prg prp prr prs ps- pse psg psp psr pss re- ree reg rep rer res rge rgg rgp rgr rgs rpe rpg rpp rpr rps rrg rrp rrr rrs rse rsg rsp rsr rss se- see seg sep ser ses sge sgg sgp sgr sgs spe spg spp spr sps sr- sre srg srp srr srs ss- sse ssg ssp ssr sss