-er ddd dde ddh ddm ddo ddr de- ded dee deh dem deo der dh- dhd dhe dhh dhm dho dhr dmd dme dmh dmm dmo dmr dod doe doh dom doo dor drd dre drm dro drr ed- edd ede edh edm edo edr eed eee eem eeo eer ehd ehe ehh ehm eho ehr em- emd eme emh emm emo emr eo- eod eoe eoh eom eoo eor erd ere erh erm ero err hdd hde hdh hdm hdo hdr he- hed hee heh hem heo her hhd hhe hhh hhm hho hhr hmd hme hmh hmm hmo hmr hod hoe hoh hom hoo hor hr- hrd hre hrh hrm hro hrr m-o m-r mdd mde mdh mdm mdo mdr med mee meh mem meo mer mhd mhh mhm mho mhr mmd mme mmh mmm mmo mmr mod moe moh mom moo mor mrd mre mrh mrm mro mrr odd ode odh odm odo odr oed oee oeh oem oeo oer ohd ohe ohh ohm oho ohr om- omd ome omh omm omo omr oo- ood ooh oom ooo oor or- ord ore orh orm oro orr rdd rde rdh rdm rdo rdr re- red ree reh rem reo rer rh- rhd rhe rhh rhm rho rhr rmd rme rmh rmm rmo rmr rod roe roh rom roo ror rrd rrh rrm rrr