-er eee eef eeg eel eer ees ef- efe eff efg efi efl efr efs ege egf egg egi egl egr egs eie eif eig eii eil eir eis ele elf elg eli ell elr els ere erf erg eri erl err ers es- ese esf esg esi esl esr ess fee fef feg fei fel fer fes ffe fff ffg ffi ffl ffr ffs fge fgf fgg fgi fgl fgr fgs fie fif fig fii fil fir fis fle flf flg fli fll flr fls fre frf frg fri frl frr frs fse fsf fsg fsi fsl fsr fss ge- gee gef geg gei gel ger ges gfe gff gfi gfl gfr gfs ggg ggi ggr ggs gie gif gig gii gil gir gis gle glf glg gli gll glr gls gre grf grg gri grl grr grs gse gsf gsg gsi gsl gsr gss i-f ie- iee ief ieg iei iel ier ies ife iff ifg ifi ifl ifr ifs ige igf igg igi igl igr igs iie iif iii iil iir iis il- ile ilf ilg ili ill ilr ils ir- ire irf irg iri irl irr irs is- ise isf isg isi isl isr iss lee lef leg lei lel ler les lfe lff lfg lfi lfl lfr lfs lge lgf lgg lgi lgl lgr lgs lie lif lig lii lil lir lis lle llf llg lli lll llr lls lrf lrg lri lrr lrs lse lsf lsg lsi lsl lsr lss re- ree ref reg rei rel rer res rfe rff rfg rfi rfl rfr rfs rge rgf rgg rgi rgr rgs rie rif rig rii ril rir ris rle rlf rlg rli rll rlr rls rrf rrg rri rrl rrr rrs rse rsf rsg rsi rsl rsr rss se- see sef seg sei sel ser ses sfe sff sfg sfi sfl sfr sfs sge sgf sgg sgi sgl sgr sgs sie sif sig sii sil sir sis sle slf slg sli sll slr sls sr- sre srf srg sri srl srr srs ss- sse ssf ssg ssi ssl ssr sss