-er -ol ddd dde ddl ddn ddo ddp ddr dds de- ded dee del den deo dep der des dl- dld dle dll dlo dlp dlr dls dnd dne dnl dnn dno dnp dnr dns dod doe dol don doo dop dor dos dpd dpe dpl dpn dpo dpp dpr dps drd dre drl drn dro drp drr drs dsd dse dsl dsn dso dsp dsr dss ed- edd ede edl edn edo edp edr eds eed eee eel een eeo eep eer ees eld ele ell eln elo elp elr els en- end ene enl enn eno enp enr ens eo- eod eoe eol eon eoo eop eor eos ep- epd epe epl epn epo epp epr eps erd ere erl ern ero erp err ers es- esd ese esl esn eso esp esr ess l-p ldd lde ldl ldn ldo ldp ldr lds led lee lel len leo lep ler les lld lle lll lln llo llp llr lls lnd lne lnl lnn lno lnp lnr lns lod loe lol lon loo lop lor los lpd lpe lpl lpn lpo lpp lpr lps lrd lrn lro lrp lrr lrs lsd lse lsl lsn lso lsp lsr lss ndd nde ndl ndn ndo ndp ndr nds ne- ned nee nel nen neo nep ner nes nld nle nll nln nlo nlp nlr nls nne nnl nnn nno nnp nns no- nod noe nol non noo nop nor nos npd npe npl npn npo npp npr nps nrd nre nrl nrn nro nrp nrr nrs nsd nse nsl nsn nso nsp nsr nss odd ode odl odn odo odp odr ods oed oee oel oen oeo oep oer oes old ole oll oln olo olp ols on- ond one onl onn ono onp onr ons oo- ood ool oon ooo oop oor oos op- opd ope opl opn opo opp opr ops or- ord ore orl orn oro orp orr ors os- osd ose osl osn oso osp osr oss p-p pdd pde pdl pdn pdo pdp pdr pds ped pee pel pen peo pep per pes pld ple pll pln plo plp plr pls pn- pnd pne pnl pnn pno pnp pnr pns pod poe pol pon poo pop por pos ppd ppe ppl ppn ppo ppp ppr pps prd pre prl prn pro prp prr prs ps- psd pse psl psn pso psp psr pss rdd rde rdl rdn rdo rdp rdr rds re- red ree rel ren reo rep rer res rld rle rll rln rlo rlp rlr rls rnd rnn rno rnp rnr rns rod roe rol ron roo rop ror ros rpd rpe rpl rpn rpo rpp rpr rps rrd rrl rrn rrp rrr rrs rsd rse rsl rsn rso rsp rsr rss sdd sde sdl sdn sdo sdp sdr sds se- sed see sel sen seo sep ser ses sld sle sll sln slo slp slr sls snd sne snl snn sno snp snr sns sod soe sol son soo sop sor sos spd spe spl spn spo spp spr sps sr- srd sre srl srn sro srp srr srs ss- ssd sse ssl ssn sso ssp ssr sss