-er -ol ddd dde ddl ddn ddo ddp ddr ddx de- ded dee del den deo dep der dex dl- dld dle dll dlo dlp dlr dlx dnd dne dnl dnn dno dnp dnr dod doe dol don doo dop dor dox dpd dpe dpl dpn dpo dpp dpr drd dre drl drn dro drp drr drx dxd dxl dxn dxo dxp dxr dxx ed- edd ede edl edn edo edp edr edx eed eee eel een eeo eep eer eex eld ele ell eln elo elp elr elx en- end ene enl enn eno enp enr eo- eod eoe eol eon eoo eop eor ep- epd epe epl epn epo epp epr epx erd ere erl ern ero erp err ex- exd exe exl exo exp exr exx l-p ldd lde ldl ldn ldo ldp ldr led lee lel len leo lep ler lex lld lle lll lln llo llp llr lnd lne lnl lnn lno lnp lnr lod loe lol lon loo lop lor lox lpd lpe lpl lpn lpo lpp lpr lpx lrd lrn lro lrp lrr lxd lxo lxr lxx ndd nde ndl ndn ndo ndp ndr ne- ned nee nel nen neo nep ner nex nld nle nll nln nlo nlp nlr nlx nne nnl nnn nno nnp no- nod noe nol non noo nop nor nox npd npe npl npn npo npp npr nrd nre nrl nrn nro nrp nrr nrx nxd nxl odd ode odl odn odo odp odr oed oee oel oen oeo oep oer oex old ole oll oln olo olp on- ond one onl onn ono onp onr onx oo- ood ool oon ooo oop oor oox op- opd ope opl opn opo opp opr opx or- ord ore orl orn oro orp orr orx ox- oxn oxo oxx p-p pdd pde pdl pdn pdo pdp pdr pdx ped pee pel pen peo pep per pex pld ple pll pln plo plp plr plx pn- pnd pne pnl pnn pno pnp pnr pnx pod poe pol pon poo pop por pox ppd ppe ppl ppn ppo ppp ppr ppx prd pre prl prn pro prp prr prx pxe pxl pxr rdd rde rdl rdn rdo rdp rdr rdx re- red ree rel ren reo rep rer rex rld rle rll rln rlo rlp rlr rnd rnn rno rnp rnr rod roe rol ron roo rop ror rox rpd rpe rpl rpn rpo rpp rpr rpx rrd rrl rrn rrp rrr rxp rxr xde xdr xed xee xel xen xep xer xex xld xlr xno xod xon xoo xop xor xox xpd xpe xpl xpn xpo xpp xrd xrx xxl xxo xxp xxx