-er ddd dde ddi ddl ddp ddr dds de- ded dee dei del dep der des dev di- did die dii dil dip dir dis div dl- dld dle dli dll dlp dlr dls dlv dpd dpe dpi dpl dpp dpr dps dpv drd dre dri drl drp drr drs drv dsd dse dsi dsl dsp dsr dss dsv dvd dve dvi dvl dvp dvr dvs ed- edd ede edi edl edp edr eds eed eee eel eep eer ees eev eid eie eii eil eip eir eis eiv eld ele eli ell elp elr els elv ep- epd epe epi epl epp epr eps erd ere eri erl erp err ers erv es- esd ese esi esl esp esr ess esv evd eve evi evl evp evr evs evv i-d i-v idd ide idi idl idp idr ids idv ie- ied iee iei iel iep ier ies iev iid iie iii iil iip iir iis il- ild ile ili ill ilp ilr ils ilv ipd ipe ipi ipl ipp ipr ips ipv ir- ird ire iri irl irp irr irs irv is- isd ise isi isl isp isr iss isv ivd ive ivi ivl ivp ivr ivs ivv l-p ldd lde ldi ldl ldp ldr lds ldv led lee lei lel lep ler les lev lid lie lii lil lip lir lis liv lld lle lli lll llp llr lls llv lpd lpe lpi lpl lpp lpr lps lpv lrd lri lrp lrr lrs lrv lsd lse lsi lsl lsp lsr lss lsv lvd lve lvi lvl lvp lvr lvs lvv p-p pdd pde pdi pdl pdp pdr pds pdv ped pee pei pel pep per pes pev pid pie pii pil pip pir pis piv pld ple pli pll plp plr pls plv ppd ppe ppi ppl ppp ppr pps ppv prd pre pri prl prp prr prs prv ps- psd pse psi psl psp psr pss psv pvd pve pvi pvl pvp pvr pvs pvv rdd rde rdi rdl rdp rdr rds rdv re- red ree rei rel rep rer res rev rid rie rii ril rip rir ris riv rld rle rli rll rlp rlr rls rpd rpe rpi rpl rpp rpr rps rpv rrd rri rrl rrp rrr rrs rsd rse rsi rsl rsp rsr rss rsv rvd rve rvi rvl rvp rvr rvs rvv sdd sde sdi sdl sdp sdr sds sdv se- sed see sei sel sep ser ses sev sid sie sii sil sip sir sis siv sld sle sli sll slp slr sls slv spd spe spi spl spp spr sps spv sr- srd sre sri srl srp srr srs srv ss- ssd sse ssi ssl ssp ssr sss ssv svd sve svi svl svp svr svs svv v-e vdd vde vdi vdl vdp vdr vds vdv ved vee vei vel vep ver ves vi- vid vie vii vil vip vir vis viv vl- vld vle vll vlp vls vlv vpd vpe vpi vpl vpp vpr vps vrd vre vri vrp vrr vrs vsd vse vsi vsl vsp vsr vss vsv vvi vvr vvs vvv