-er -ol ddd dde ddl ddn ddo ddr de- ded dee del den deo der dev dl- dld dle dll dlo dlr dlv dnd dne dnl dnn dno dnr dod doe dol don doo dor dov drd dre drl drn dro drr drv dvd dve dvl dvn dvr ed- edd ede edl edn edo edr eed eee eel een eeo eer eev eld ele ell eln elo elr elv en- end ene enl enn eno enr env eo- eod eoe eol eon eoo eor erd ere erl ern ero err erv evd eve evl evn evo evr evv ldd lde ldl ldn ldo ldr ldv led lee lel len leo ler lev lld lle lll lln llo llr llv lnd lne lnl lnn lno lnr lod loe lol lon loo lor lov lrd lrn lro lrr lrv lvd lve lvl lvn lvr lvv ndd nde ndl ndn ndo ndr ndv ne- ned nee nel nen neo ner nev nld nle nll nln nlo nlr nlv nne nnl nnn nno nnv no- nod noe nol non noo nor nov nrd nre nrl nrn nro nrr nrv nvd nve nvl nvn nvv odd ode odl odn odo odr odv oed oee oel oen oeo oer old ole oll oln olo on- ond one onl onn ono onr oo- ood ool oon ooo oor oov or- ord ore orl orn oro orr orv ov- ovd ove ovl ovo ovv rdd rde rdl rdn rdo rdr rdv re- red ree rel ren reo rer rev rld rle rll rln rlo rlr rnd rnn rno rnr rnv rod roe rol ron roo ror rov rrd rrl rrn rrr rvd rve rvl rvn rvo rvr rvv v-e vdd vde vdl vdo vdr vdv ved vee vel ven veo ver vl- vld vle vll vlo vlv vn- vnd vnl vno vnr vnv vod voe vol von voo vor vov vrd vre vrn vrr vvo vvr vvv