-er -ol ddd dde ddl ddo ddp ddr ddx de- ded dee del deo dep der dex dl- dld dle dll dlo dlp dlr dlx dod doe dol doo dop dor dox dpd dpe dpl dpo dpp dpr drd dre drl dro drp drr drx dxd dxl dxo dxp dxr dxx ed- edd ede edl edo edp edr edx eed eee eel eeo eep eer eex eld ele ell elo elp elr elx eo- eod eoe eol eoo eop eor ep- epd epe epl epo epp epr epx erd ere erl ero erp err ex- exd exe exl exo exp exr exx l-p ldd lde ldl ldo ldp ldr led lee lel leo lep ler lex lld lle lll llo llp llr lod loe lol loo lop lor lox lpd lpe lpl lpo lpp lpr lpx lrd lro lrp lrr lxd lxo lxr lxx odd ode odl odo odp odr oed oee oel oeo oep oer oex old ole oll olo olp oo- ood ool ooo oop oor oox op- opd ope opl opo opp opr opx or- ord ore orl oro orp orr orx ox- oxo oxx p-p pdd pde pdl pdo pdp pdr pdx ped pee pel peo pep per pex pld ple pll plo plp plr plx pod poe pol poo pop por pox ppd ppe ppl ppo ppp ppr ppx prd pre prl pro prp prr prx pxe pxl pxr rdd rde rdl rdo rdp rdr rdx re- red ree rel reo rep rer rex rld rle rll rlo rlp rlr rod roe rol roo rop ror rox rpd rpe rpl rpo rpp rpr rpx rrd rrl rrp rrr rxp rxr xde xdr xed xee xel xep xer xex xld xlr xod xoo xop xor xox xpd xpe xpl xpo xpp xrd xrx xxl xxo xxp xxx