eee eef eeg eep ees eet ef- efe eff efg efi efp efs eft ege egf egg egi egp egs egt eie eif eig eii eip eis eit ep- epe epf epg epi epp eps ept es- ese esf esg esi esp ess est ete etf etg eti etp ets ett fee fef feg fei fep fes fet ffe fff ffg ffi ffp ffs fft fge fgf fgg fgi fgp fgs fgt fie fif fig fii fip fis fit fpe fpg fpi fpp fps fpt fse fsf fsg fsi fsp fss fst fte ftf ftg fti ftp fts ftt g-p ge- gee gef geg gei gep ges get gfe gff gfi gfp gfs gft ggg ggi ggp ggs ggt gie gif gig gii gip gis git gpe gpf gpg gpi gpp gps gpt gse gsf gsg gsi gsp gss gst gte gtf gtg gti gtp gts gtt i-f ie- iee ief ieg iei iep ies iet ife iff ifg ifi ifp ifs ift ige igf igg igi igp igs igt iie iif iii iip iis iit ipe ipf ipg ipi ipp ips ipt is- ise isf isg isi isp iss ist ite itf itg iti itp its itt p-p pee pef peg pei pep pes pet pfe pff pfg pfi pfp pfs pft pge pgf pgg pgi pgp pgs pgt pie pif pig pii pip pis pit ppe ppf ppg ppi ppp pps ppt ps- pse psf psg psi psp pss pst pt- pte ptf ptg pti ptp pts ptt se- see sef seg sei sep ses set sfe sff sfg sfi sfp sfs sft sge sgf sgg sgi sgp sgs sgt sie sif sig sii sip sis sit spe spf spg spi spp sps spt ss- sse ssf ssg ssi ssp sss sst ste stf stg sti stp sts stt te- tee tef teg tei tep tes tet tfe tff tfg tfi tfp tfs tft tge tgf tgg tgi tgp tgs tgt tie tif tig tii tip tis tit tpe tpf tpg tpi tpp tps tpt tse tsf tsg tsi tsp tss tst tte ttf ttg tti ttp tts ttt