ddd dde ddl ddp dds de- ded dee del dep des dev dl- dld dle dll dlp dls dlv dpd dpe dpl dpp dps dpv dsd dse dsl dsp dss dsv dvd dve dvl dvp dvs ed- edd ede edl edp eds eed eee eel eep ees eev eld ele ell elp els elv ep- epd epe epl epp eps es- esd ese esl esp ess esv evd eve evl evp evs evv l-p ldd lde ldl ldp lds ldv led lee lel lep les lev lld lle lll llp lls llv lpd lpe lpl lpp lps lpv lsd lse lsl lsp lss lsv lvd lve lvl lvp lvs lvv p-p pdd pde pdl pdp pds pdv ped pee pel pep pes pev pld ple pll plp pls plv ppd ppe ppl ppp pps ppv ps- psd pse psl psp pss psv pvd pve pvl pvp pvs pvv sdd sde sdl sdp sds sdv se- sed see sel sep ses sev sld sle sll slp sls slv spd spe spl spp sps spv ss- ssd sse ssl ssp sss ssv svd sve svl svp svs svv v-e vdd vde vdl vdp vds vdv ved vee vel vep ves vl- vld vle vll vlp vls vlv vpd vpe vpl vpp vps vsd vse vsl vsp vss vsv vvs vvv