-er ddd dde ddl ddn ddp ddr dds de- ded dee del den dep der des dl- dld dle dll dlp dlr dls dnd dne dnl dnn dnp dnr dns dpd dpe dpl dpn dpp dpr dps drd dre drl drn drp drr drs dsd dse dsl dsn dsp dsr dss ed- edd ede edl edn edp edr eds eed eee eel een eep eer ees eld ele ell eln elp elr els en- end ene enl enn enp enr ens ep- epd epe epl epn epp epr eps erd ere erl ern erp err ers es- esd ese esl esn esp esr ess l-p ldd lde ldl ldn ldp ldr lds led lee lel len lep ler les lld lle lll lln llp llr lls lnd lne lnl lnn lnp lnr lns lpd lpe lpl lpn lpp lpr lps lrd lrn lrp lrr lrs lsd lse lsl lsn lsp lsr lss ndd nde ndl ndn ndp ndr nds ne- ned nee nel nen nep ner nes nld nle nll nln nlp nlr nls nne nnl nnn nnp nns npd npe npl npn npp npr nps nrd nre nrl nrn nrp nrr nrs nsd nse nsl nsn nsp nsr nss p-p pdd pde pdl pdn pdp pdr pds ped pee pel pen pep per pes pld ple pll pln plp plr pls pn- pnd pne pnl pnn pnp pnr pns ppd ppe ppl ppn ppp ppr pps prd pre prl prn prp prr prs ps- psd pse psl psn psp psr pss rdd rde rdl rdn rdp rdr rds re- red ree rel ren rep rer res rld rle rll rln rlp rlr rls rnd rnn rnp rnr rns rpd rpe rpl rpn rpp rpr rps rrd rrl rrn rrp rrr rrs rsd rse rsl rsn rsp rsr rss sdd sde sdl sdn sdp sdr sds se- sed see sel sen sep ser ses sld sle sll sln slp slr sls snd sne snl snn snp snr sns spd spe spl spn spp spr sps sr- srd sre srl srn srp srr srs ss- ssd sse ssl ssn ssp ssr sss