-er ddd dde ddm ddo ddr ddt ddu de- ded dee dem deo der det deu dmd dme dmm dmo dmr dmt dmu dod doe dom doo dor dot dou drd dre drm dro drr drt dru dtd dte dtm dto dtr dtt dtu dud due dum duo dur dut ed- edd ede edm edo edr edt edu eed eee eem eeo eer eet em- emd eme emm emo emr emt emu eo- eod eoe eom eoo eor eot eou erd ere erm ero err ert eru etd ete etm eto etr ett etu eu- eud eue eur eut m-o m-r mdd mde mdm mdo mdr mdt mdu med mee mem meo mer met meu mmd mme mmm mmo mmr mmt mmu mod moe mom moo mor mot mou mrd mre mrm mro mrr mrt mru mtd mte mtm mto mtr mtt mtu mud mue mum mur mut muu odd ode odm odo odr odt odu oed oee oem oeo oer oet om- omd ome omm omo omr omt omu oo- ood oom ooo oor oot or- ord ore orm oro orr ort oru ot- otd ote otm oto otr ott otu ou- oud oue oum ouo our out rdd rde rdm rdo rdr rdt rdu re- red ree rem reo rer ret reu rmd rme rmm rmo rmr rmt rod roe rom roo ror rot rou rrd rrm rrr rrt rru rtd rte rtm rto rtr rtt rtu rud rue rum ruo rur rut ruu tdd tde tdm tdo tdr tdt tdu te- ted tee tem teo ter tet teu tmd tme tmm tmo tmr tmt tmu to- tod toe tom too tor tot tou trd tre trm tro trr trt tru ttd tte ttm tto ttr ttt ttu tud tue tum tuo tur tut tuu udd ude udm udo udr udt udu ued uee uem uer uet um- umd ume umm umo umr umt umu uod uoe uom uoo uor uot ur- urd ure urm uro urr urt uru utd ute utm uto utr utt utu uue uum uur uut uuu