-er ddd dde ddi ddk ddm ddn ddo ddr de- ded dee dei dek dem den deo der di- did die dii dik dim din dio dir dke dki dkk dkm dko dkr dmd dme dmi dmk dmm dmn dmo dmr dnd dne dni dnk dnm dnn dno dnr dod doe doi dok dom don doo dor drd dre dri drk drm drn dro drr ed- edd ede edi edk edm edn edo edr eed eee eek eem een eeo eer eid eie eii eik eim ein eio eir ekd eke eki eko ekr em- emd eme emi emk emm emn emo emr en- end ene eni enk enm enn eno enr eo- eod eoe eoi eok eom eon eoo eor erd ere eri erk erm ern ero err i-d idd ide idi idk idm idn ido idr ie- ied iee iei iek iem ien ier iid iie iii iim iin iio iir ike iki ikk iko ikr im- imd ime imi imm imn imo in- ind ine ini ink inm inn ino inr io- iod ioe ioi iom ion ioo ior ir- ird ire iri irk irm irn iro irr kde kdk kdm kdo kdr ke- ked kee kei kek kem ken keo ker kid kie kii kik kim kin kio kir kke kki kkk kkm kkn kkr kmd kme kmi kmk kmm kmo kn- knd kne kni knk knm knn kno knr kod koe koi kok kom kon koo kor krd kri krk krn kro krr m-o m-r mdd mde mdi mdk mdm mdn mdo mdr med mee mei mek mem men meo mer mi- mid mie mii mik mim min mio mir mkd mke mkk mkm mkn mko mkr mmd mme mmi mmk mmm mmn mmo mmr mne mni mnk mnm mnn mno mnr mod moe moi mok mom mon moo mor mrd mre mri mrk mrm mrn mro mrr n-i ndd nde ndi ndk ndm ndn ndo ndr ne- ned nee nei nek nem nen neo ner nid nie nii nik nim nin nio nir nke nki nkk nkm nkn nko nkr nmd nme nmi nmk nmm nmn nmo nmr nne nni nnk nnm nnn nno no- nod noe noi nok nom non noo nor nrd nre nri nrk nrm nrn nro nrr o-i odd ode odi odm odn odo odr oed oee oei oem oen oeo oer oid oie oii oik oim oin oio oir okd oke oki okk oko okr om- omd ome omi omm omn omo omr on- ond one oni onk onn ono onr oo- ood ooi ook oom oon ooo oor or- ord ore ori ork orm orn oro orr rdd rde rdi rdm rdn rdo rdr re- red ree rei rek rem ren reo rer rid rie rii rik rim rin rio rir rke rkk rkm rko rmd rme rmi rmm rmn rmo rmr rnd rni rnm rnn rno rnr rod roe roi rok rom ron roo ror rrd rri rrk rrm rrn rrr