-er eee eef eeg eek eeo eep eer ees eev ef- efe eff efg efi efo efp efr efs ege egf egg egi ego egp egr egs eie eif eig eii eik eio eip eir eis eiv eke ekf ekg eki eko ekp ekr eks ekv eo- eoe eof eog eoi eok eoo eop eor eos ep- epe epf epg epi epo epp epr eps ere erf erg eri erk ero erp err ers erv es- ese esf esg esi esk eso esp esr ess esv eve evf evg evi evo evp evr evs evv fee fef feg fei fek feo fep fer fes fev ffe fff ffg ffi ffk ffo ffp ffr ffs ffv fge fgf fgg fgi fgp fgr fgs fgv fie fif fig fii fik fip fir fis fkf fkg fki fkk fkp foe fof fog foi fok foo fop for fos fpe fpg fpi fpk fpo fpp fpr fps fpv fre frf frg fri frk fro frp frr frs fse fsf fsg fsi fsk fso fsp fsr fss fsv fvg fvk fvp g-p ge- gee gef geg gei gek geo gep ger ges gev gfe gff gfi gfk gfo gfp gfr gfs ggg ggi ggo ggp ggr ggs ggv gie gif gig gii gik gio gip gir gis giv gko gkp gks goe gof gog goi gok goo gop gor gos gov gpe gpf gpg gpi gpk gpo gpp gpr gps gre grf grg gri grk gro grp grr grs grv gse gsf gsg gsi gsk gso gsp gsr gss gsv gve gvf gvg gvi gvk gvo gvp gvr gvs i-f i-v ie- iee ief ieg iei iek iep ier ies iev ife iff ifg ifi ifo ifp ifr ifs ige igf igg igi igk igo igp igr igs iie iif iii iio iip iir iis ike ikf iki ikk iko ikr iks ikv io- ioe iof iog ioi ioo iop ior ios iov ipe ipf ipg ipi ipo ipp ipr ips ipv ir- ire irf irg iri irk iro irp irr irs irv is- ise isf isg isi isk iso isp isr iss isv ive ivf ivg ivi ivo ivp ivr ivs ivv ke- kee kef keg kei kek keo kep ker kes kev kff kfg kfi kfo kfs kgf kgi kgo kgp kgs kgv kie kif kig kii kik kio kip kir kis kiv kke kki kkk kkp kkr kks kkv koe kof kog koi kok koo kop kor kos kpe kpf kpi kpk kpo kpp kpr kps kpv krf krg kri krk kro krp krr krs krv kse ksf ksg ksi ksk kso ksp ksr kss ksv kvi kvk kvo kvp kvr kvs kvv o-i oee oef oeg oei oeo oep oer oes of- ofe off ofg ofi ofo ofp ofr ofs ofv oge ogf ogg ogi ogo ogp ogs oie oif oii oik oio oip oir ois oiv oke okg oki okk oko okp okr oks oo- oof oog ooi ook ooo oop oor oos oov op- ope opf opg opi opk opo opp opr ops opv or- ore orf org ori ork oro orp orr ors orv os- ose osf osg osi osk oso osp osr oss osv ov- ove ovf ovi ovo ovp ovs ovv p-p pee pef peg pei pek peo pep per pes pev pfe pff pfg pfi pfk pfo pfp pfr pfs pfv pge pgf pgg pgi pgk pgo pgp pgr pgs pgv pie pif pig pii pik pio pip pir pis piv pke pkf pkg pki pko pkp pkr pks poe pof pog poi pok poo pop por pos pov ppe ppf ppg ppi ppk ppo ppp ppr pps ppv pre prf prg pri prk pro prp prr prs prv ps- pse psf psg psi psk pso psp psr pss psv pve pvf pvg pvi pvk pvo pvp pvr pvs pvv re- ree ref reg rei rek reo rep rer res rev rfe rff rfg rfi rfk rfo rfp rfr rfs rfv rge rgf rgg rgi rgk rgo rgp rgr rgs rgv rie rif rig rii rik rio rip rir ris riv rke rkf rkg rkk rko rkp rks rkv roe rof rog roi rok roo rop ror ros rov rpe rpf rpg rpi rpk rpo rpp rpr rps rpv rrf rrg rri rrk rrp rrr rrs rse rsf rsg rsi rsk rso rsp rsr rss rsv rve rvf rvg rvi rvo rvp rvr rvs rvv se- see sef seg sei sek seo sep ser ses sev sfe sff sfg sfi sfk sfo sfp sfr sfs sfv sge sgf sgg sgi sgk sgo sgp sgr sgs sgv sie sif sig sii sik sio sip sir sis siv sk- ske skf skg ski skk sko skp skr sks soe sof sog soi sok soo sop sor sos sov spe spf spg spi spk spo spp spr sps spv sr- sre srf srg sri srk sro srp srr srs srv ss- sse ssf ssg ssi ssk sso ssp ssr sss ssv sve svf svg svi svk svo svp svr svs svv v-e vee vef veg vei vek veo vep ver ves vff vfg vfi vfp vfr vfs vfv vgf vgg vgo vgp vgr vgs vi- vie vif vig vii vik vio vip vir vis viv vkg vkp voe vof vog voi vok voo vop vor vos vov vpe vpf vpg vpi vpk vpo vpp vpr vps vre vrf vrg vri vrk vrp vrr vrs vse vsf vsg vsi vsk vso vsp vsr vss vsv vvg vvi vvo vvr vvs vvv