-er ddd dde ddk ddm ddn ddo ddr de- ded dee dek dem den deo der dke dkk dkm dko dkr dmd dme dmk dmm dmn dmo dmr dnd dne dnk dnm dnn dno dnr dod doe dok dom don doo dor drd dre drk drm drn dro drr ed- edd ede edk edm edn edo edr eed eee eek eem een eeo eer ekd eke eko ekr em- emd eme emk emm emn emo emr en- end ene enk enm enn eno enr eo- eod eoe eok eom eon eoo eor erd ere erk erm ern ero err kde kdk kdm kdo kdr ke- ked kee kek kem ken keo ker kke kkk kkm kkn kkr kmd kme kmk kmm kmo kn- knd kne knk knm knn kno knr kod koe kok kom kon koo kor krd krk krn kro krr m-o m-r mdd mde mdk mdm mdn mdo mdr med mee mek mem men meo mer mkd mke mkk mkm mkn mko mkr mmd mme mmk mmm mmn mmo mmr mne mnk mnm mnn mno mnr mod moe mok mom mon moo mor mrd mre mrk mrm mrn mro mrr ndd nde ndk ndm ndn ndo ndr ne- ned nee nek nem nen neo ner nke nkk nkm nkn nko nkr nmd nme nmk nmm nmn nmo nmr nne nnk nnm nnn nno no- nod noe nok nom non noo nor nrd nre nrk nrm nrn nro nrr odd ode odm odn odo odr oed oee oem oen oeo oer okd oke okk oko okr om- omd ome omm omn omo omr on- ond one onk onn ono onr oo- ood ook oom oon ooo oor or- ord ore ork orm orn oro orr rdd rde rdm rdn rdo rdr re- red ree rek rem ren reo rer rke rkk rkm rko rmd rme rmm rmn rmo rmr rnd rnm rnn rno rnr rod roe rok rom ron roo ror rrd rrk rrm rrn rrr