-er ddd dde ddf ddi ddm ddo ddr dds de- ded dee def dei dem deo der des dfd dfe dff dfi dfm dfo dfr dfs di- did die dif dii dim dio dir dis dmd dme dmf dmi dmm dmo dmr dms dod doe dof doi dom doo dor dos drd dre dri drm dro drr drs dsd dse dsf dsi dsm dso dsr dss ed- edd ede edf edi edm edo edr eds eed eee eef eem eeo eer ees ef- efd efe eff efi efm efo efr efs eid eie eif eii eim eio eir eis em- emd eme emf emi emm emo emr ems eo- eod eoe eof eoi eom eoo eor eos erd ere erf eri erm ero err ers es- esd ese esf esi esm eso esr ess fdd fde fdf fdi fdm fdo fdr fds fed fee fef fei fem feo fer fes ffd ffe fff ffi ffm ffo ffr ffs fid fie fif fii fim fir fis fmd fme fmf fmi fmm fmo fmr fms foe fof foi fom foo for fos frd fre frf fri frm fro frr frs fsd fse fsf fsi fsm fso fsr fss i-d i-f idd ide idf idi idm ido idr ids ie- ied iee ief iei iem ier ies ifd ife iff ifi ifm ifo ifr ifs iid iie iif iii iim iio iir iis im- imd ime imf imi imm imo ims io- iod ioe iof ioi iom ioo ior ios ir- ird ire irf iri irm iro irr irs is- isd ise isf isi ism iso isr iss m-f m-o m-r mdd mde mdf mdi mdm mdo mdr mds med mee mef mei mem meo mer mes mfd mfe mff mfi mfm mfo mfr mfs mi- mid mie mif mii mim mio mir mis mmd mme mmf mmi mmm mmo mmr mms mod moe mof moi mom moo mor mos mrd mre mrf mri mrm mro mrr mrs msd mse msf msi msm mso msr mss o-i odd ode odf odi odm odo odr ods oed oee oef oei oem oeo oer oes of- ofd ofe off ofi ofm ofo ofr ofs oid oie oif oii oim oio oir ois om- omd ome omf omi omm omo omr oms oo- ood oof ooi oom ooo oor oos or- ord ore orf ori orm oro orr ors os- osd ose osf osi osm oso osr oss rdd rde rdf rdi rdm rdo rdr rds re- red ree ref rei rem reo rer res rfd rfe rff rfi rfm rfo rfr rfs rid rie rif rii rim rio rir ris rmd rme rmf rmi rmm rmo rmr rms rod roe rof roi rom roo ror ros rrd rrf rri rrm rrr rrs rsd rse rsf rsi rsm rso rsr rss sdd sde sdf sdi sdm sdo sdr sds se- sed see sef sei sem seo ser ses sfd sfe sff sfi sfm sfo sfr sfs sid sie sif sii sim sio sir sis smd sme smf smi smm smo smr sms sod soe sof soi som soo sor sos sr- srd sre srf sri srm sro srr srs ss- ssd sse ssf ssi ssm sso ssr sss