-er -ol ddd dde ddf ddk ddl ddn ddo ddr de- ded dee def dek del den deo der dfd dfe dff dfk dfl dfn dfo dfr dke dkk dkl dko dkr dl- dld dle dlf dlk dll dlo dlr dnd dne dnf dnk dnl dnn dno dnr dod doe dof dok dol don doo dor drd dre drk drl drn dro drr ed- edd ede edf edk edl edn edo edr eed eee eef eek eel een eeo eer ef- efd efe eff efl efo efr ekd eke ekf ekl eko ekr eld ele elf elk ell eln elo elr en- end ene enf enk enl enn eno enr eo- eod eoe eof eok eol eon eoo eor erd ere erf erk erl ern ero err fdd fde fdf fdk fdl fdn fdo fdr fed fee fef fek fel fen feo fer ffd ffe fff ffk ffl ffn ffo ffr fkf fkk fkl fld fle flf fll fln flo flr fnd fne fnf fnk fnl fnn fnr foe fof fok fol fon foo for frd fre frf frk frl frn fro frr kde kdf kdk kdl kdo kdr ke- ked kee kef kek kel ken keo ker kfd kff kfo kke kkk kkl kkn kkr kl- kld klf klo klr kn- knd kne knf knk knl knn kno knr kod koe kof kok kol kon koo kor krd krf krk krl krn kro krr ldd lde ldf ldk ldl ldn ldo ldr led lee lef lek lel len leo ler lfd lfe lff lfk lfl lfn lfo lfr lkl lkr lld lle llf llk lll lln llo llr lnd lne lnk lnl lnn lno lnr lod loe lof lok lol lon loo lor lrd lrf lrk lrn lro lrr ndd nde ndf ndk ndl ndn ndo ndr ne- ned nee nef nek nel nen neo ner nfd nfe nff nfk nfl nfn nfo nfr nke nkf nkk nkn nko nkr nld nle nlf nlk nll nln nlo nlr nne nnf nnk nnl nnn nno no- nod noe nof nok nol non noo nor nrd nre nrf nrk nrl nrn nro nrr odd ode odf odl odn odo odr oed oee oef oel oen oeo oer of- ofd ofe off ofl ofn ofo ofr okd oke okk okl oko okr old ole olf olk oll oln olo on- ond one onf onk onl onn ono onr oo- ood oof ook ool oon ooo oor or- ord ore orf ork orl orn oro orr rdd rde rdf rdl rdn rdo rdr re- red ree ref rek rel ren reo rer rfd rfe rff rfk rfl rfn rfo rfr rke rkf rkk rko rld rle rlf rll rln rlo rlr rnd rnn rno rnr rod roe rof rok rol ron roo ror rrd rrf rrk rrl rrn rrr