-er ddd dde ddm ddn ddo ddr dds de- ded dee dem den deo der des dmd dme dmm dmn dmo dmr dms dnd dne dnm dnn dno dnr dns dod doe dom don doo dor dos drd dre drm drn dro drr drs dsd dse dsm dsn dso dsr dss ed- edd ede edm edn edo edr eds eed eee eem een eeo eer ees em- emd eme emm emn emo emr ems en- end ene enm enn eno enr ens eo- eod eoe eom eon eoo eor eos erd ere erm ern ero err ers es- esd ese esm esn eso esr ess m-o m-r mdd mde mdm mdn mdo mdr mds med mee mem men meo mer mes mmd mme mmm mmn mmo mmr mms mne mnm mnn mno mnr mns mod moe mom mon moo mor mos mrd mre mrm mrn mro mrr mrs msd mse msm msn mso msr mss ndd nde ndm ndn ndo ndr nds ne- ned nee nem nen neo ner nes nmd nme nmm nmn nmo nmr nms nne nnm nnn nno nns no- nod noe nom non noo nor nos nrd nre nrm nrn nro nrr nrs nsd nse nsm nsn nso nsr nss odd ode odm odn odo odr ods oed oee oem oen oeo oer oes om- omd ome omm omn omo omr oms on- ond one onn ono onr ons oo- ood oom oon ooo oor oos or- ord ore orm orn oro orr ors os- osd ose osm osn oso osr oss rdd rde rdm rdn rdo rdr rds re- red ree rem ren reo rer res rmd rme rmm rmn rmo rmr rms rnd rnm rnn rno rnr rns rod roe rom ron roo ror ros rrd rrm rrn rrr rrs rsd rse rsm rsn rso rsr rss sdd sde sdm sdn sdo sdr sds se- sed see sem sen seo ser ses smd sme smm smn smo smr sms snd sne snm snn sno snr sns sod soe som son soo sor sos sr- srd sre srm srn sro srr srs ss- ssd sse ssm ssn sso ssr sss