-er ddd dde ddh ddm ddo ddr dds de- ded dee deh dem deo der des dh- dhd dhe dhh dhm dho dhr dhs dmd dme dmh dmm dmo dmr dms dod doe doh dom doo dor dos drd dre drm dro drr drs dsd dse dsh dsm dso dsr dss ed- edd ede edh edm edo edr eds eed eee eem eeo eer ees ehd ehe ehh ehm eho ehr ehs em- emd eme emh emm emo emr ems eo- eod eoe eoh eom eoo eor eos erd ere erh erm ero err ers es- esd ese esh esm eso esr ess hdd hde hdh hdm hdo hdr hds he- hed hee heh hem heo her hes hhd hhe hhh hhm hho hhr hhs hmd hme hmh hmm hmo hmr hms hod hoe hoh hom hoo hor hos hr- hrd hre hrh hrm hro hrr hrs hsd hse hsh hsm hsr hss m-o m-r mdd mde mdh mdm mdo mdr mds med mee meh mem meo mer mes mhd mhh mhm mho mhr mhs mmd mme mmh mmm mmo mmr mms mod moe moh mom moo mor mos mrd mre mrh mrm mro mrr mrs msd mse msh msm mso msr mss odd ode odh odm odo odr ods oed oee oeh oem oeo oer oes ohd ohe ohh ohm oho ohr ohs om- omd ome omh omm omo omr oms oo- ood ooh oom ooo oor oos or- ord ore orh orm oro orr ors os- osd ose osh osm oso osr oss rdd rde rdh rdm rdo rdr rds re- red ree reh rem reo rer res rh- rhd rhe rhh rhm rho rhr rhs rmd rme rmh rmm rmo rmr rms rod roe roh rom roo ror ros rrd rrh rrm rrr rrs rsd rse rsh rsm rso rsr rss sdd sde sdh sdm sdo sdr sds se- sed see seh sem seo ser ses sh- shd she shh shm sho shr shs smd sme smh smm smo smr sms sod soe soh som soo sor sos sr- srd sre srh srm sro srr srs ss- ssd sse ssh ssm sso ssr sss