-er -ol ddd dde ddf ddl ddo ddp ddr dds de- ded dee def del deo dep der des dfd dfe dff dfl dfo dfp dfr dfs dl- dld dle dlf dll dlo dlp dlr dls dod doe dof dol doo dop dor dos dpd dpe dpf dpl dpo dpp dpr dps drd dre drl dro drp drr drs dsd dse dsf dsl dso dsp dsr dss ed- edd ede edf edl edo edp edr eds eed eee eef eel eeo eep eer ees ef- efd efe eff efl efo efp efr efs eld ele elf ell elo elp elr els eo- eod eoe eof eol eoo eop eor eos ep- epd epe epf epl epo epp epr eps erd ere erf erl ero erp err ers es- esd ese esf esl eso esp esr ess fdd fde fdf fdl fdo fdp fdr fds fed fee fef fel feo fep fer fes ffd ffe fff ffl ffo ffp ffr ffs fld fle flf fll flo flp flr fls foe fof fol foo fop for fos fpd fpe fpl fpo fpp fpr fps frd fre frf frl fro frp frr frs fsd fse fsf fsl fso fsp fsr fss l-p ldd lde ldf ldl ldo ldp ldr lds led lee lef lel leo lep ler les lfd lfe lff lfl lfo lfp lfr lfs lld lle llf lll llo llp llr lls lod loe lof lol loo lop lor los lpd lpe lpf lpl lpo lpp lpr lps lrd lrf lro lrp lrr lrs lsd lse lsf lsl lso lsp lsr lss odd ode odf odl odo odp odr ods oed oee oef oel oeo oep oer oes of- ofd ofe off ofl ofo ofp ofr ofs old ole olf oll olo olp ols oo- ood oof ool ooo oop oor oos op- opd ope opf opl opo opp opr ops or- ord ore orf orl oro orp orr ors os- osd ose osf osl oso osp osr oss p-p pdd pde pdf pdl pdo pdp pdr pds ped pee pef pel peo pep per pes pfd pfe pff pfl pfo pfp pfr pfs pld ple plf pll plo plp plr pls pod poe pof pol poo pop por pos ppd ppe ppf ppl ppo ppp ppr pps prd pre prf prl pro prp prr prs ps- psd pse psf psl pso psp psr pss rdd rde rdf rdl rdo rdp rdr rds re- red ree ref rel reo rep rer res rfd rfe rff rfl rfo rfp rfr rfs rld rle rlf rll rlo rlp rlr rls rod roe rof rol roo rop ror ros rpd rpe rpf rpl rpo rpp rpr rps rrd rrf rrl rrp rrr rrs rsd rse rsf rsl rso rsp rsr rss sdd sde sdf sdl sdo sdp sdr sds se- sed see sef sel seo sep ser ses sfd sfe sff sfl sfo sfp sfr sfs sld sle slf sll slo slp slr sls sod soe sof sol soo sop sor sos spd spe spf spl spo spp spr sps sr- srd sre srf srl sro srp srr srs ss- ssd sse ssf ssl sso ssp ssr sss