-er -ol ddd dde ddl ddn ddo ddr dds de- ded dee del den deo der des dl- dld dle dll dlo dlr dls dnd dne dnl dnn dno dnr dns dod doe dol don doo dor dos drd dre drl drn dro drr drs dsd dse dsl dsn dso dsr dss ed- edd ede edl edn edo edr eds eed eee eel een eeo eer ees eld ele ell eln elo elr els en- end ene enl enn eno enr ens eo- eod eoe eol eon eoo eor eos erd ere erl ern ero err ers es- esd ese esl esn eso esr ess ldd lde ldl ldn ldo ldr lds led lee lel len leo ler les lld lle lll lln llo llr lls lnd lne lnl lnn lno lnr lns lod loe lol lon loo lor los lrd lrn lro lrr lrs lsd lse lsl lsn lso lsr lss ndd nde ndl ndn ndo ndr nds ne- ned nee nel nen neo ner nes nld nle nll nln nlo nlr nls nne nnl nnn nno nns no- nod noe nol non noo nor nos nrd nre nrl nrn nro nrr nrs nsd nse nsl nsn nso nsr nss odd ode odl odn odo odr ods oed oee oel oen oeo oer oes old ole oll oln olo ols on- ond one onl onn ono onr ons oo- ood ool oon ooo oor oos or- ord ore orl orn oro orr ors os- osd ose osl osn oso osr oss rdd rde rdl rdn rdo rdr rds re- red ree rel ren reo rer res rld rle rll rln rlo rlr rls rnd rnn rno rnr rns rod roe rol ron roo ror ros rrd rrl rrn rrr rrs rsd rse rsl rsn rso rsr rss sdd sde sdl sdn sdo sdr sds se- sed see sel sen seo ser ses sld sle sll sln slo slr sls snd sne snl snn sno snr sns sod soe sol son soo sor sos sr- srd sre srl srn sro srr srs ss- ssd sse ssl ssn sso ssr sss