-er ddd dde ddf ddm ddo ddr dds ddu de- ded dee def dem deo der des deu dfd dfe dff dfm dfo dfr dfs dfu dmd dme dmf dmm dmo dmr dms dmu dod doe dof dom doo dor dos dou drd dre drm dro drr drs dru dsd dse dsf dsm dso dsr dss dsu dud due duf dum duo dur dus ed- edd ede edf edm edo edr eds edu eed eee eef eem eeo eer ees ef- efd efe eff efm efo efr efs em- emd eme emf emm emo emr ems emu eo- eod eoe eof eom eoo eor eos eou erd ere erf erm ero err ers eru es- esd ese esf esm eso esr ess esu eu- eud eue euf eur eus fdd fde fdf fdm fdo fdr fds fdu fed fee fef fem feo fer fes feu ffd ffe fff ffm ffo ffr ffs ffu fmd fme fmf fmm fmo fmr fms fmu foe fof fom foo for fos fou frd fre frf frm fro frr frs fru fsd fse fsf fsm fso fsr fss fsu fud fue fuf fum fuo fur fus fuu m-f m-o m-r mdd mde mdf mdm mdo mdr mds mdu med mee mef mem meo mer mes meu mfd mfe mff mfm mfo mfr mfs mfu mmd mme mmf mmm mmo mmr mms mmu mod moe mof mom moo mor mos mou mrd mre mrf mrm mro mrr mrs mru msd mse msf msm mso msr mss msu mud mue muf mum mur mus muu odd ode odf odm odo odr ods odu oed oee oef oem oeo oer oes of- ofd ofe off ofm ofo ofr ofs ofu om- omd ome omf omm omo omr oms omu oo- ood oof oom ooo oor oos or- ord ore orf orm oro orr ors oru os- osd ose osf osm oso osr oss osu ou- oud oue ouf oum ouo our ous rdd rde rdf rdm rdo rdr rds rdu re- red ree ref rem reo rer res reu rfd rfe rff rfm rfo rfr rfs rfu rmd rme rmf rmm rmo rmr rms rod roe rof rom roo ror ros rou rrd rrf rrm rrr rrs rru rsd rse rsf rsm rso rsr rss rsu rud rue ruf rum ruo rur rus ruu sdd sde sdf sdm sdo sdr sds sdu se- sed see sef sem seo ser ses seu sfd sfe sff sfm sfo sfr sfs sfu smd sme smf smm smo smr sms smu sod soe sof som soo sor sos sou sr- srd sre srf srm sro srr srs ss- ssd sse ssf ssm sso ssr sss ssu sud sue suf sum suo sur sus suu udd ude udf udm udo udr uds udu ued uee uef uem uer ues ufd ufe uff ufm ufo ufr ufs ufu um- umd ume umf umm umo umr ums umu uod uoe uom uoo uor uos ur- urd ure urf urm uro urr urs uru usd use usf usm uso usr uss usu uue uum uur uus uuu