-er -up eee eeg eep eer ees eex ege egg egp egr egs egu egx ep- epe epg epp epr eps epu epx ere erg erp err ers eru es- ese esg esp esr ess esu esx eu- eue eug eup eur eus eux ex- exe exp exr exs exu exx g-p ge- gee geg gep ger ges geu gex ggg ggp ggr ggs ggu gpe gpg gpp gpr gps gpu gpx gre grg grp grr grs gru grx gse gsg gsp gsr gss gsu gsx gu- gue gug gup gur gus guu gxp gxs p-p pee peg pep per pes peu pex pge pgg pgp pgr pgs ppe ppg ppp ppr pps ppu ppx pre prg prp prr prs pru prx ps- pse psg psp psr pss psu psx pue pug pup pur pus puu pxe pxg pxr pxs re- ree reg rep rer res reu rex rge rgg rgp rgr rgs rgx rpe rpg rpp rpr rps rpu rpx rrg rrp rrr rrs rru rse rsg rsp rsr rss rsu rsx rue rug rup rur rus ruu rux rxp rxr rxs se- see seg sep ser ses seu sex sge sgg sgp sgr sgs sgu sgx spe spg spp spr sps spu spx sr- sre srg srp srr srs srx ss- sse ssg ssp ssr sss ssu ssx sue sug sup sur sus suu sux sxs sxu uee ueg uep uer ues uge ugg ugp ugr ugs ugu ugx up- upe upg upp upr ups upu upx ur- ure urg urp urr urs uru urx use usg usp usr uss usu usx uue uug uur uus uuu uxr uxu xee xeg xep xer xes xeu xex xge xgp xpe xpg xpp xps xrx xsp xss xue xup xus xxp xxx