-er eee eeg eep eer ees eet eex ege egg egp egr egs egt egx ep- epe epg epp epr eps ept epx ere erg erp err ers ert es- ese esg esp esr ess est esx ete etg etp etr ets ett etx ex- exe exp exr exs ext exx g-p ge- gee geg gep ger ges get gex ggg ggp ggr ggs ggt gpe gpg gpp gpr gps gpt gpx gre grg grp grr grs grt grx gse gsg gsp gsr gss gst gsx gte gtg gtp gtr gts gtt gtx gxp gxs gxt p-p pee peg pep per pes pet pex pge pgg pgp pgr pgs pgt ppe ppg ppp ppr pps ppt ppx pre prg prp prr prs prt prx ps- pse psg psp psr pss pst psx pt- pte ptg ptp ptr pts ptt ptx pxe pxg pxr pxs pxt re- ree reg rep rer res ret rex rge rgg rgp rgr rgs rgt rgx rpe rpg rpp rpr rps rpt rpx rrg rrp rrr rrs rrt rse rsg rsp rsr rss rst rsx rte rtg rtp rtr rts rtt rtx rxp rxr rxs se- see seg sep ser ses set sex sge sgg sgp sgr sgs sgt sgx spe spg spp spr sps spt spx sr- sre srg srp srr srs srt srx ss- sse ssg ssp ssr sss sst ssx ste stg stp str sts stt stx sxs sxt t-x te- tee teg tep ter tes tet tex tge tgg tgp tgr tgs tgt tpe tpg tpp tpr tps tpt tpx tre trg trp trr trs trt trx tse tsg tsp tsr tss tst tsx tte ttg ttp ttr tts ttt ttx txe txs txt xee xeg xep xer xes xet xex xge xgp xpe xpg xpp xps xpt xrt xrx xsp xss xst xtp xtr xts xtx xxp xxx