-er -ol ddd dde ddl ddo ddp ddr de- ded dee del deo dep der dl- dld dle dll dlo dlp dlr dod doe dol doo dop dor dpd dpe dpl dpo dpp dpr drd dre drl dro drp drr ed- edd ede edl edo edp edr eed eee eel eeo eep eer eld ele ell elo elp elr eo- eod eoe eol eoo eop eor ep- epd epe epl epo epp epr erd ere erl ero erp err l-p ldd lde ldl ldo ldp ldr led lee lel leo lep ler lld lle lll llo llp llr lod loe lol loo lop lor lpd lpe lpl lpo lpp lpr lrd lro lrp lrr odd ode odl odo odp odr oed oee oel oeo oep oer old ole oll olo olp oo- ood ool ooo oop oor op- opd ope opl opo opp opr or- ord ore orl oro orp orr p-p pdd pde pdl pdo pdp pdr ped pee pel peo pep per pld ple pll plo plp plr pod poe pol poo pop por ppd ppe ppl ppo ppp ppr prd pre prl pro prp prr rdd rde rdl rdo rdp rdr re- red ree rel reo rep rer rld rle rll rlo rlp rlr rod roe rol roo rop ror rpd rpe rpl rpo rpp rpr rrd rrl rrp rrr