-er -ol ddd dde ddf ddl ddn ddo ddr dds de- ded dee def del den deo der des dfd dfe dff dfl dfn dfo dfr dfs dl- dld dle dlf dll dlo dlr dls dnd dne dnf dnl dnn dno dnr dns dod doe dof dol don doo dor dos drd dre drl drn dro drr drs dsd dse dsf dsl dsn dso dsr dss ed- edd ede edf edl edn edo edr eds eed eee eef eel een eeo eer ees ef- efd efe eff efl efo efr efs eld ele elf ell eln elo elr els en- end ene enf enl enn eno enr ens eo- eod eoe eof eol eon eoo eor eos erd ere erf erl ern ero err ers es- esd ese esf esl esn eso esr ess fdd fde fdf fdl fdn fdo fdr fds fed fee fef fel fen feo fer fes ffd ffe fff ffl ffn ffo ffr ffs fld fle flf fll fln flo flr fls fnd fne fnf fnl fnn fnr fns foe fof fol fon foo for fos frd fre frf frl frn fro frr frs fsd fse fsf fsl fsn fso fsr fss ldd lde ldf ldl ldn ldo ldr lds led lee lef lel len leo ler les lfd lfe lff lfl lfn lfo lfr lfs lld lle llf lll lln llo llr lls lnd lne lnl lnn lno lnr lns lod loe lof lol lon loo lor los lrd lrf lrn lro lrr lrs lsd lse lsf lsl lsn lso lsr lss ndd nde ndf ndl ndn ndo ndr nds ne- ned nee nef nel nen neo ner nes nfd nfe nff nfl nfn nfo nfr nfs nld nle nlf nll nln nlo nlr nls nne nnf nnl nnn nno nns no- nod noe nof nol non noo nor nos nrd nre nrf nrl nrn nro nrr nrs nsd nse nsf nsl nsn nso nsr nss odd ode odf odl odn odo odr ods oed oee oef oel oen oeo oer oes of- ofd ofe off ofl ofn ofo ofr ofs old ole olf oll oln olo ols on- ond one onf onl onn ono onr ons oo- ood oof ool oon ooo oor oos or- ord ore orf orl orn oro orr ors os- osd ose osf osl osn oso osr oss rdd rde rdf rdl rdn rdo rdr rds re- red ree ref rel ren reo rer res rfd rfe rff rfl rfn rfo rfr rfs rld rle rlf rll rln rlo rlr rls rnd rnn rno rnr rns rod roe rof rol ron roo ror ros rrd rrf rrl rrn rrr rrs rsd rse rsf rsl rsn rso rsr rss sdd sde sdf sdl sdn sdo sdr sds se- sed see sef sel sen seo ser ses sfd sfe sff sfl sfn sfo sfr sfs sld sle slf sll sln slo slr sls snd sne snf snl snn sno snr sns sod soe sof sol son soo sor sos sr- srd sre srf srl srn sro srr srs ss- ssd sse ssf ssl ssn sso ssr sss