-er -ol ddd dde ddf ddl ddn ddo ddp ddr dds de- ded dee def del den deo dep der des dfd dfe dff dfl dfn dfo dfp dfr dfs dl- dld dle dlf dll dlo dlp dlr dls dnd dne dnf dnl dnn dno dnp dnr dns dod doe dof dol don doo dop dor dos dpd dpe dpf dpl dpn dpo dpp dpr dps drd dre drl drn dro drp drr drs dsd dse dsf dsl dsn dso dsp dsr dss ed- edd ede edf edl edn edo edp edr eds eed eee eef eel een eeo eep eer ees ef- efd efe eff efl efo efp efr efs eld ele elf ell eln elo elp elr els en- end ene enf enl enn eno enp enr ens eo- eod eoe eof eol eon eoo eop eor eos ep- epd epe epf epl epn epo epp epr eps erd ere erf erl ern ero erp err ers es- esd ese esf esl esn eso esp esr ess fdd fde fdf fdl fdn fdo fdp fdr fds fed fee fef fel fen feo fep fer fes ffd ffe fff ffl ffn ffo ffp ffr ffs fld fle flf fll fln flo flp flr fls fnd fne fnf fnl fnn fnp fnr fns foe fof fol fon foo fop for fos fpd fpe fpl fpn fpo fpp fpr fps frd fre frf frl frn fro frp frr frs fsd fse fsf fsl fsn fso fsp fsr fss l-p ldd lde ldf ldl ldn ldo ldp ldr lds led lee lef lel len leo lep ler les lfd lfe lff lfl lfn lfo lfp lfr lfs lld lle llf lll lln llo llp llr lls lnd lne lnl lnn lno lnp lnr lns lod loe lof lol lon loo lop lor los lpd lpe lpf lpl lpn lpo lpp lpr lps lrd lrf lrn lro lrp lrr lrs lsd lse lsf lsl lsn lso lsp lsr lss ndd nde ndf ndl ndn ndo ndp ndr nds ne- ned nee nef nel nen neo nep ner nes nfd nfe nff nfl nfn nfo nfp nfr nfs nld nle nlf nll nln nlo nlp nlr nls nne nnf nnl nnn nno nnp nns no- nod noe nof nol non noo nop nor nos npd npe npf npl npn npo npp npr nps nrd nre nrf nrl nrn nro nrp nrr nrs nsd nse nsf nsl nsn nso nsp nsr nss odd ode odf odl odn odo odp odr ods oed oee oef oel oen oeo oep oer oes of- ofd ofe off ofl ofn ofo ofp ofr ofs old ole olf oll oln olo olp ols on- ond one onf onl onn ono onp onr ons oo- ood oof ool oon ooo oop oor oos op- opd ope opf opl opn opo opp opr ops or- ord ore orf orl orn oro orp orr ors os- osd ose osf osl osn oso osp osr oss p-p pdd pde pdf pdl pdn pdo pdp pdr pds ped pee pef pel pen peo pep per pes pfd pfe pff pfl pfn pfo pfp pfr pfs pld ple plf pll pln plo plp plr pls pn- pnd pne pnf pnl pnn pno pnp pnr pns pod poe pof pol pon poo pop por pos ppd ppe ppf ppl ppn ppo ppp ppr pps prd pre prf prl prn pro prp prr prs ps- psd pse psf psl psn pso psp psr pss rdd rde rdf rdl rdn rdo rdp rdr rds re- red ree ref rel ren reo rep rer res rfd rfe rff rfl rfn rfo rfp rfr rfs rld rle rlf rll rln rlo rlp rlr rls rnd rnn rno rnp rnr rns rod roe rof rol ron roo rop ror ros rpd rpe rpf rpl rpn rpo rpp rpr rps rrd rrf rrl rrn rrp rrr rrs rsd rse rsf rsl rsn rso rsp rsr rss sdd sde sdf sdl sdn sdo sdp sdr sds se- sed see sef sel sen seo sep ser ses sfd sfe sff sfl sfn sfo sfp sfr sfs sld sle slf sll sln slo slp slr sls snd sne snf snl snn sno snp snr sns sod soe sof sol son soo sop sor sos spd spe spf spl spn spo spp spr sps sr- srd sre srf srl srn sro srp srr srs ss- ssd sse ssf ssl ssn sso ssp ssr sss