-er -ol ddd dde ddf ddl ddo ddp ddr de- ded dee def del deo dep der dfd dfe dff dfl dfo dfp dfr dl- dld dle dlf dll dlo dlp dlr dod doe dof dol doo dop dor dpd dpe dpf dpl dpo dpp dpr drd dre drl dro drp drr ed- edd ede edf edl edo edp edr eed eee eef eel eeo eep eer ef- efd efe eff efl efo efp efr eld ele elf ell elo elp elr eo- eod eoe eof eol eoo eop eor ep- epd epe epf epl epo epp epr erd ere erf erl ero erp err fdd fde fdf fdl fdo fdp fdr fed fee fef fel feo fep fer ffd ffe fff ffl ffo ffp ffr fld fle flf fll flo flp flr foe fof fol foo fop for fpd fpe fpl fpo fpp fpr frd fre frf frl fro frp frr l-p ldd lde ldf ldl ldo ldp ldr led lee lef lel leo lep ler lfd lfe lff lfl lfo lfp lfr lld lle llf lll llo llp llr lod loe lof lol loo lop lor lpd lpe lpf lpl lpo lpp lpr lrd lrf lro lrp lrr odd ode odf odl odo odp odr oed oee oef oel oeo oep oer of- ofd ofe off ofl ofo ofp ofr old ole olf oll olo olp oo- ood oof ool ooo oop oor op- opd ope opf opl opo opp opr or- ord ore orf orl oro orp orr p-p pdd pde pdf pdl pdo pdp pdr ped pee pef pel peo pep per pfd pfe pff pfl pfo pfp pfr pld ple plf pll plo plp plr pod poe pof pol poo pop por ppd ppe ppf ppl ppo ppp ppr prd pre prf prl pro prp prr rdd rde rdf rdl rdo rdp rdr re- red ree ref rel reo rep rer rfd rfe rff rfl rfo rfp rfr rld rle rlf rll rlo rlp rlr rod roe rof rol roo rop ror rpd rpe rpf rpl rpo rpp rpr rrd rrf rrl rrp rrr