-er eee eef eeg eeo eer ees eet ef- efe eff efg efi efo efr efs eft ege egf egg egi ego egr egs egt eie eif eig eii eio eir eis eit eo- eoe eof eog eoi eoo eor eos eot ere erf erg eri ero err ers ert es- ese esf esg esi eso esr ess est ete etf etg eti eto etr ets ett fee fef feg fei feo fer fes fet ffe fff ffg ffi ffo ffr ffs fft fge fgf fgg fgi fgr fgs fgt fie fif fig fii fir fis fit foe fof fog foi foo for fos fot fre frf frg fri fro frr frs frt fse fsf fsg fsi fso fsr fss fst fte ftf ftg fti fto ftr fts ftt ge- gee gef geg gei geo ger ges get gfe gff gfi gfo gfr gfs gft ggg ggi ggo ggr ggs ggt gie gif gig gii gio gir gis git goe gof gog goi goo gor gos got gre grf grg gri gro grr grs grt gse gsf gsg gsi gso gsr gss gst gte gtf gtg gti gto gtr gts gtt i-f ie- iee ief ieg iei ier ies iet ife iff ifg ifi ifo ifr ifs ift ige igf igg igi igo igr igs igt iie iif iii iio iir iis iit io- ioe iof iog ioi ioo ior ios iot ir- ire irf irg iri iro irr irs irt is- ise isf isg isi iso isr iss ist ite itf itg iti ito its itt o-i oee oef oeg oei oeo oer oes oet of- ofe off ofg ofi ofo ofr ofs oft oge ogf ogg ogi ogo ogs ogt oie oif oii oio oir ois oit oo- oof oog ooi ooo oor oos oot or- ore orf org ori oro orr ors ort os- ose osf osg osi oso osr oss ost ot- ote otf otg oti oto otr ots ott re- ree ref reg rei reo rer res ret rfe rff rfg rfi rfo rfr rfs rft rge rgf rgg rgi rgo rgr rgs rgt rie rif rig rii rio rir ris rit roe rof rog roi roo ror ros rot rrf rrg rri rrr rrs rrt rse rsf rsg rsi rso rsr rss rst rte rtf rtg rti rto rtr rts rtt se- see sef seg sei seo ser ses set sfe sff sfg sfi sfo sfr sfs sft sge sgf sgg sgi sgo sgr sgs sgt sie sif sig sii sio sir sis sit soe sof sog soi soo sor sos sot sr- sre srf srg sri sro srr srs srt ss- sse ssf ssg ssi sso ssr sss sst ste stf stg sti sto str sts stt te- tee tef teg tei teo ter tes tet tfe tff tfg tfi tfo tfr tfs tft tge tgf tgg tgi tgo tgr tgs tgt tie tif tig tii tio tir tis tit to- toe tof tog toi too tor tos tot tre trf trg tri tro trr trs trt tse tsf tsg tsi tso tsr tss tst tte ttf ttg tti tto ttr tts ttt