-er eee eef eeg eeo eep eer ees eet ef- efe eff efg efi efo efp efr efs eft ege egf egg egi ego egp egr egs egt eie eif eig eii eio eip eir eis eit eo- eoe eof eog eoi eoo eop eor eos eot ep- epe epf epg epi epo epp epr eps ept ere erf erg eri ero erp err ers ert es- ese esf esg esi eso esp esr ess est ete etf etg eti eto etp etr ets ett fee fef feg fei feo fep fer fes fet ffe fff ffg ffi ffo ffp ffr ffs fft fge fgf fgg fgi fgp fgr fgs fgt fie fif fig fii fip fir fis fit foe fof fog foi foo fop for fos fot fpe fpg fpi fpo fpp fpr fps fpt fre frf frg fri fro frp frr frs frt fse fsf fsg fsi fso fsp fsr fss fst fte ftf ftg fti fto ftp ftr fts ftt g-p ge- gee gef geg gei geo gep ger ges get gfe gff gfi gfo gfp gfr gfs gft ggg ggi ggo ggp ggr ggs ggt gie gif gig gii gio gip gir gis git goe gof gog goi goo gop gor gos got gpe gpf gpg gpi gpo gpp gpr gps gpt gre grf grg gri gro grp grr grs grt gse gsf gsg gsi gso gsp gsr gss gst gte gtf gtg gti gto gtp gtr gts gtt i-f ie- iee ief ieg iei iep ier ies iet ife iff ifg ifi ifo ifp ifr ifs ift ige igf igg igi igo igp igr igs igt iie iif iii iio iip iir iis iit io- ioe iof iog ioi ioo iop ior ios iot ipe ipf ipg ipi ipo ipp ipr ips ipt ir- ire irf irg iri iro irp irr irs irt is- ise isf isg isi iso isp isr iss ist ite itf itg iti ito itp its itt o-i oee oef oeg oei oeo oep oer oes oet of- ofe off ofg ofi ofo ofp ofr ofs oft oge ogf ogg ogi ogo ogp ogs ogt oie oif oii oio oip oir ois oit oo- oof oog ooi ooo oop oor oos oot op- ope opf opg opi opo opp opr ops opt or- ore orf org ori oro orp orr ors ort os- ose osf osg osi oso osp osr oss ost ot- ote otf otg oti oto otp otr ots ott p-p pee pef peg pei peo pep per pes pet pfe pff pfg pfi pfo pfp pfr pfs pft pge pgf pgg pgi pgo pgp pgr pgs pgt pie pif pig pii pio pip pir pis pit poe pof pog poi poo pop por pos pot ppe ppf ppg ppi ppo ppp ppr pps ppt pre prf prg pri pro prp prr prs prt ps- pse psf psg psi pso psp psr pss pst pt- pte ptf ptg pti pto ptp ptr pts ptt re- ree ref reg rei reo rep rer res ret rfe rff rfg rfi rfo rfp rfr rfs rft rge rgf rgg rgi rgo rgp rgr rgs rgt rie rif rig rii rio rip rir ris rit roe rof rog roi roo rop ror ros rot rpe rpf rpg rpi rpo rpp rpr rps rpt rrf rrg rri rrp rrr rrs rrt rse rsf rsg rsi rso rsp rsr rss rst rte rtf rtg rti rto rtp rtr rts rtt se- see sef seg sei seo sep ser ses set sfe sff sfg sfi sfo sfp sfr sfs sft sge sgf sgg sgi sgo sgp sgr sgs sgt sie sif sig sii sio sip sir sis sit soe sof sog soi soo sop sor sos sot spe spf spg spi spo spp spr sps spt sr- sre srf srg sri sro srp srr srs srt ss- sse ssf ssg ssi sso ssp ssr sss sst ste stf stg sti sto stp str sts stt te- tee tef teg tei teo tep ter tes tet tfe tff tfg tfi tfo tfp tfr tfs tft tge tgf tgg tgi tgo tgp tgr tgs tgt tie tif tig tii tio tip tir tis tit to- toe tof tog toi too top tor tos tot tpe tpf tpg tpi tpo tpp tpr tps tpt tre trf trg tri tro trp trr trs trt tse tsf tsg tsi tso tsp tsr tss tst tte ttf ttg tti tto ttp ttr tts ttt