-er eee eef eel eep eer ees eev ef- efe eff efi efl efp efr efs eie eif eii eil eip eir eis eiv ele elf eli ell elp elr els elv ep- epe epf epi epl epp epr eps ere erf eri erl erp err ers erv es- ese esf esi esl esp esr ess esv eve evf evi evl evp evr evs evv fee fef fei fel fep fer fes fev ffe fff ffi ffl ffp ffr ffs ffv fie fif fii fil fip fir fis fle flf fli fll flp flr fls fpe fpi fpl fpp fpr fps fpv fre frf fri frl frp frr frs fse fsf fsi fsl fsp fsr fss fsv fvp i-f i-v ie- iee ief iei iel iep ier ies iev ife iff ifi ifl ifp ifr ifs iie iif iii iil iip iir iis il- ile ilf ili ill ilp ilr ils ilv ipe ipf ipi ipl ipp ipr ips ipv ir- ire irf iri irl irp irr irs irv is- ise isf isi isl isp isr iss isv ive ivf ivi ivl ivp ivr ivs ivv l-p lee lef lei lel lep ler les lev lfe lff lfi lfl lfp lfr lfs lie lif lii lil lip lir lis liv lle llf lli lll llp llr lls llv lpe lpf lpi lpl lpp lpr lps lpv lrf lri lrp lrr lrs lrv lse lsf lsi lsl lsp lsr lss lsv lve lvf lvi lvl lvp lvr lvs lvv p-p pee pef pei pel pep per pes pev pfe pff pfi pfl pfp pfr pfs pfv pie pif pii pil pip pir pis piv ple plf pli pll plp plr pls plv ppe ppf ppi ppl ppp ppr pps ppv pre prf pri prl prp prr prs prv ps- pse psf psi psl psp psr pss psv pve pvf pvi pvl pvp pvr pvs pvv re- ree ref rei rel rep rer res rev rfe rff rfi rfl rfp rfr rfs rfv rie rif rii ril rip rir ris riv rle rlf rli rll rlp rlr rls rpe rpf rpi rpl rpp rpr rps rpv rrf rri rrl rrp rrr rrs rse rsf rsi rsl rsp rsr rss rsv rve rvf rvi rvl rvp rvr rvs rvv se- see sef sei sel sep ser ses sev sfe sff sfi sfl sfp sfr sfs sfv sie sif sii sil sip sir sis siv sle slf sli sll slp slr sls slv spe spf spi spl spp spr sps spv sr- sre srf sri srl srp srr srs srv ss- sse ssf ssi ssl ssp ssr sss ssv sve svf svi svl svp svr svs svv v-e vee vef vei vel vep ver ves vff vfi vfl vfp vfr vfs vfv vi- vie vif vii vil vip vir vis viv vl- vle vlf vll vlp vls vlv vpe vpf vpi vpl vpp vpr vps vre vrf vri vrp vrr vrs vse vsf vsi vsl vsp vsr vss vsv vvi vvr vvs vvv