-er eee eef eeg eek 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 eik eio eip eir eis eit eke ekf ekg eki eko ekp ekr eks ekt eo- eoe eof eog eoi eok eoo eop eor eos eot ep- epe epf epg epi epo epp epr eps ept ere erf erg eri erk ero erp err ers ert es- ese esf esg esi esk eso esp esr ess est ete etf etg eti etk eto etp etr ets ett fee fef feg fei fek feo fep fer fes fet ffe fff ffg ffi ffk ffo ffp ffr ffs fft fge fgf fgg fgi fgp fgr fgs fgt fie fif fig fii fik fip fir fis fit fkf fkg fki fkk fkp fkt foe fof fog foi fok foo fop for fos fot fpe fpg fpi fpk fpo fpp fpr fps fpt fre frf frg fri frk fro frp frr frs frt fse fsf fsg fsi fsk fso fsp fsr fss fst fte ftf ftg fti ftk fto ftp ftr fts ftt g-p ge- gee gef geg gei gek geo gep ger ges get gfe gff gfi gfk gfo gfp gfr gfs gft ggg ggi ggo ggp ggr ggs ggt gie gif gig gii gik gio gip gir gis git gko gkp gks gkt goe gof gog goi gok goo gop gor gos got gpe gpf gpg gpi gpk gpo gpp gpr gps gpt gre grf grg gri grk gro grp grr grs grt gse gsf gsg gsi gsk gso gsp gsr gss gst gte gtf gtg gti gtk gto gtp gtr gts gtt i-f ie- iee ief ieg iei iek iep ier ies iet ife iff ifg ifi ifo ifp ifr ifs ift ige igf igg igi igk igo igp igr igs igt iie iif iii iio iip iir iis iit ike ikf iki ikk iko ikr iks ikt io- ioe iof iog ioi ioo iop ior ios iot ipe ipf ipg ipi ipo ipp ipr ips ipt ir- ire irf irg iri irk iro irp irr irs irt is- ise isf isg isi isk iso isp isr iss ist ite itf itg iti itk ito itp its itt k-t ke- kee kef keg kei kek keo kep ker kes ket kff kfg kfi kfo kfs kgf kgi kgo kgp kgs kie kif kig kii kik kio kip kir kis kit kke kki kkk kkp kkr kks kkt koe kof kog koi kok koo kop kor kos kot kpe kpf kpi kpk kpo kpp kpr kps kpt krf krg kri krk kro krp krr krs krt kse ksf ksg ksi ksk kso ksp ksr kss kst kte ktf ktg ktk kto ktp ktr kts ktt 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 oik oio oip oir ois oit oke okg oki okk oko okp okr oks oo- oof oog ooi ook ooo oop oor oos oot op- ope opf opg opi opk opo opp opr ops opt or- ore orf org ori ork oro orp orr ors ort os- ose osf osg osi osk oso osp osr oss ost ot- ote otf otg oti otk oto otp otr ots ott p-p pee pef peg pei pek peo pep per pes pet pfe pff pfg pfi pfk pfo pfp pfr pfs pft pge pgf pgg pgi pgk pgo pgp pgr pgs pgt pie pif pig pii pik pio pip pir pis pit pke pkf pkg pki pko pkp pkr pks pkt poe pof pog poi pok poo pop por pos pot ppe ppf ppg ppi ppk ppo ppp ppr pps ppt pre prf prg pri prk pro prp prr prs prt ps- pse psf psg psi psk pso psp psr pss pst pt- pte ptf ptg pti ptk pto ptp ptr pts ptt re- ree ref reg rei rek reo rep rer res ret rfe rff rfg rfi rfk rfo rfp rfr rfs rft rge rgf rgg rgi rgk rgo rgp rgr rgs rgt rie rif rig rii rik rio rip rir ris rit rke rkf rkg rkk rko rkp rks rkt roe rof rog roi rok roo rop ror ros rot rpe rpf rpg rpi rpk rpo rpp rpr rps rpt rrf rrg rri rrk rrp rrr rrs rrt rse rsf rsg rsi rsk rso rsp rsr rss rst rte rtf rtg rti rtk rto rtp rtr rts rtt se- see sef seg sei sek seo sep ser ses set sfe sff sfg sfi sfk sfo sfp sfr sfs sft sge sgf sgg sgi sgk sgo sgp sgr sgs sgt sie sif sig sii sik sio sip sir sis sit sk- ske skf skg ski skk sko skp skr sks skt soe sof sog soi sok soo sop sor sos sot spe spf spg spi spk spo spp spr sps spt sr- sre srf srg sri srk sro srp srr srs srt ss- sse ssf ssg ssi ssk sso ssp ssr sss sst ste stf stg sti stk sto stp str sts stt te- tee tef teg tei tek teo tep ter tes tet tfe tff tfg tfi tfk tfo tfp tfr tfs tft tge tgf tgg tgi tgk tgo tgp tgr tgs tgt tie tif tig tii tik tio tip tir tis tit tke tkg tkk tko tkp tkr tks tkt to- toe tof tog toi tok too top tor tos tot tpe tpf tpg tpi tpk tpo tpp tpr tps tpt tre trf trg tri trk tro trp trr trs trt tse tsf tsg tsi tsk tso tsp tsr tss tst tte ttf ttg tti ttk tto ttp ttr tts ttt