-er ddd dde ddi ddk ddm ddn ddo ddr dds de- ded dee dei dek dem den deo der des di- did die dii dik dim din dio dir dis dke dki dkk dkm dko dkr dks dmd dme dmi dmk dmm dmn dmo dmr dms dnd dne dni dnk dnm dnn dno dnr dns dod doe doi dok dom don doo dor dos drd dre dri drk drm drn dro drr drs dsd dse dsi dsk dsm dsn dso dsr dss ed- edd ede edi edk edm edn edo edr eds eed eee eek eem een eeo eer ees eid eie eii eik eim ein eio eir eis ekd eke eki eko ekr eks em- emd eme emi emk emm emn emo emr ems en- end ene eni enk enm enn eno enr ens eo- eod eoe eoi eok eom eon eoo eor eos erd ere eri erk erm ern ero err ers es- esd ese esi esk esm esn eso esr ess i-d idd ide idi idk idm idn ido idr ids ie- ied iee iei iek iem ien ier ies iid iie iii iim iin iio iir iis ike iki ikk iko ikr iks im- imd ime imi imm imn imo ims in- ind ine ini ink inm inn ino inr ins io- iod ioe ioi iom ion ioo ior ios ir- ird ire iri irk irm irn iro irr irs is- isd ise isi isk ism isn iso isr iss kde kdk kdm kdo kdr kds ke- ked kee kei kek kem ken keo ker kes kid kie kii kik kim kin kio kir kis kke kki kkk kkm kkn kkr kks kmd kme kmi kmk kmm kmo kms kn- knd kne kni knk knm knn kno knr kod koe koi kok kom kon koo kor kos krd kri krk krn kro krr krs ksd kse ksi ksk ksm ksn kso ksr kss m-o m-r mdd mde mdi mdk mdm mdn mdo mdr mds med mee mei mek mem men meo mer mes mi- mid mie mii mik mim min mio mir mis mkd mke mkk mkm mkn mko mkr mks mmd mme mmi mmk mmm mmn mmo mmr mms mne mni mnk mnm mnn mno mnr mns mod moe moi mok mom mon moo mor mos mrd mre mri mrk mrm mrn mro mrr mrs msd mse msi msk msm msn mso msr mss n-i ndd nde ndi ndk ndm ndn ndo ndr nds ne- ned nee nei nek nem nen neo ner nes nid nie nii nik nim nin nio nir nis nke nki nkk nkm nkn nko nkr nks nmd nme nmi nmk nmm nmn nmo nmr nms nne nni nnk nnm nnn nno nns no- nod noe noi nok nom non noo nor nos nrd nre nri nrk nrm nrn nro nrr nrs nsd nse nsi nsk nsm nsn nso nsr nss o-i odd ode odi odm odn odo odr ods oed oee oei oem oen oeo oer oes oid oie oii oik oim oin oio oir ois okd oke oki okk oko okr oks om- omd ome omi omm omn omo omr oms on- ond one oni onk onn ono onr ons oo- ood ooi ook oom oon ooo oor oos or- ord ore ori ork orm orn oro orr ors os- osd ose osi osk osm osn oso osr oss rdd rde rdi rdm rdn rdo rdr rds re- red ree rei rek rem ren reo rer res rid rie rii rik rim rin rio rir ris rke rkk rkm rko rks rmd rme rmi rmm rmn rmo rmr rms rnd rni rnm rnn rno rnr rns rod roe roi rok rom ron roo ror ros rrd rri rrk rrm rrn rrr rrs rsd rse rsi rsk rsm rsn rso rsr rss sdd sde sdi sdk sdm sdn sdo sdr sds se- sed see sei sek sem sen seo ser ses sid sie sii sik sim sin sio sir sis sk- skd ske ski skk skm sko skr sks smd sme smi smk smm smn smo smr sms snd sne sni snk snm snn sno snr sns sod soe soi sok som son soo sor sos sr- srd sre sri srk srm srn sro srr srs ss- ssd sse ssi ssk ssm ssn sso ssr sss