-er ddd dde ddf ddi ddm ddr de- ded dee def dei dem der dfd dfe dff dfi dfm dfr di- did die dif dii dim dir dmd dme dmf dmi dmm dmr drd dre dri drm drr ed- edd ede edf edi edm edr eed eee eef eem eer ef- efd efe eff efi efm efr eid eie eif eii eim eir em- emd eme emf emi emm emr erd ere erf eri erm err fdd fde fdf fdi fdm fdr fed fee fef fei fem fer ffd ffe fff ffi ffm ffr fid fie fif fii fim fir fmd fme fmf fmi fmm fmr frd fre frf fri frm frr i-d i-f idd ide idf idi idm idr ie- ied iee ief iei iem ier ifd ife iff ifi ifm ifr iid iie iif iii iim iir im- imd ime imf imi imm ir- ird ire irf iri irm irr m-f m-r mdd mde mdf mdi mdm mdr med mee mef mei mem mer mfd mfe mff mfi mfm mfr mi- mid mie mif mii mim mir mmd mme mmf mmi mmm mmr mrd mre mrf mri mrm mrr rdd rde rdf rdi rdm rdr re- red ree ref rei rem rer rfd rfe rff rfi rfm rfr rid rie rif rii rim rir rmd rme rmf rmi rmm rmr rrd rrf rri rrm rrr