-er eee eef eeg een eeo eep eer ees ef- efe eff efg efi efo efp efr efs ege egf egg egi egn ego egp egr egs eie eif eig eii ein eio eip eir eis en- ene enf eng eni enn eno enp enr ens eo- eoe eof eog eoi eon eoo eop eor eos ep- epe epf epg epi epn epo epp epr eps ere erf erg eri ern ero erp err ers es- ese esf esg esi esn eso esp esr ess fee fef feg fei fen feo fep fer fes ffe fff ffg ffi ffn ffo ffp ffr ffs fge fgf fgg fgi fgn fgp fgr fgs fie fif fig fii fin fip fir fis fne fnf fng fni fnn fnp fnr fns foe fof fog foi fon foo fop for fos fpe fpg fpi fpn fpo fpp fpr fps fre frf frg fri frn fro frp frr frs fse fsf fsg fsi fsn fso fsp fsr fss g-p ge- gee gef geg gei gen geo gep ger ges gfe gff gfi gfo gfp gfr gfs ggg ggi ggn ggo ggp ggr ggs gie gif gig gii gin gio gip gir gis gne gnf gni gnn gno gnp gnr gns goe gof gog goi gon goo gop gor gos gpe gpf gpg gpi gpn gpo gpp gpr gps gre grf grg gri grn gro grp grr grs gse gsf gsg gsi gsn gso gsp gsr gss i-f ie- iee ief ieg iei ien iep ier ies ife iff ifg ifi ifn ifo ifp ifr ifs ige igf igg igi ign igo igp igr igs iie iif iii iin iio iip iir iis in- ine inf ing ini inn ino inp inr ins io- ioe iof iog ioi ion ioo iop ior ios ipe ipf ipg ipi ipn ipo ipp ipr ips ir- ire irf irg iri irn iro irp irr irs is- ise isf isg isi isn iso isp isr iss n-i ne- nee nef neg nei nen neo nep ner nes nfe nff nfi nfn nfo nfp nfr nfs nge ngf ngg ngi ngn ngo ngp ngs nie nif nig nii nin nio nip nir nis nne nnf nng nni nnn nno nnp nns no- noe nof nog noi non noo nop nor nos npe npf npg npi npn npo npp npr nps nre nrf nrg nri nrn nro nrp nrr nrs nse nsf nsg nsi nsn nso nsp nsr nss o-i oee oef oeg oei oen oeo oep oer oes of- ofe off ofg ofi ofn ofo ofp ofr ofs oge ogf ogg ogi ogn ogo ogp ogs oie oif oii oin oio oip oir ois on- one onf ong oni onn ono onp onr ons oo- oof oog ooi oon ooo oop oor oos op- ope opf opg opi opn opo opp opr ops or- ore orf org ori orn oro orp orr ors os- ose osf osg osi osn oso osp osr oss p-p pee pef peg pei pen peo pep per pes pfe pff pfg pfi pfn pfo pfp pfr pfs pge pgf pgg pgi pgn pgo pgp pgr pgs pie pif pig pii pin pio pip pir pis pn- pne pnf png pni pnn pno pnp pnr pns poe pof pog poi pon poo pop por pos ppe ppf ppg ppi ppn ppo ppp ppr pps pre prf prg pri prn pro prp prr prs ps- pse psf psg psi psn pso psp psr pss re- ree ref reg rei ren reo rep rer res rfe rff rfg rfi rfn rfo rfp rfr rfs rge rgf rgg rgi rgn rgo rgp rgr rgs rie rif rig rii rin rio rip rir ris rng rni rnn rno rnp rnr rns roe rof rog roi ron roo rop ror ros rpe rpf rpg rpi rpn rpo rpp rpr rps rrf rrg rri rrn rrp rrr rrs rse rsf rsg rsi rsn rso rsp rsr rss se- see sef seg sei sen seo sep ser ses sfe sff sfg sfi sfn sfo sfp sfr sfs sge sgf sgg sgi sgn sgo sgp sgr sgs sie sif sig sii sin sio sip sir sis sne snf sng sni snn sno snp snr sns soe sof sog soi son soo sop sor sos spe spf spg spi spn spo spp spr sps sr- sre srf srg sri srn sro srp srr srs ss- sse ssf ssg ssi ssn sso ssp ssr sss