-er ddd dde ddf ddi ddm ddo ddr dds ddz de- ded dee def dei dem deo der des dez dfd dfe dff dfi dfm dfo dfr dfs dfz di- did die dif dii dim dio dir dis diz dmd dme dmf dmi dmm dmo dmr dms dmz dod doe dof doi dom doo dor dos doz drd dre dri drm dro drr drs drz dsd dse dsf dsi dsm dso dsr dss dsz dzd dze dzi dzo dzr dzs 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 erz es- esd ese esf esi esm eso esr ess eze ezf ezo ezr ezs ezz fdd fde fdf fdi fdm fdo fdr fds fed fee fef fei fem feo fer fes fez ffd ffe fff ffi ffm ffo ffr ffs ffz fid fie fif fii fim fir fis fiz fmd fme fmf fmi fmm fmo fmr fms foe fof foi fom foo for fos foz frd fre frf fri frm fro frr frs fsd fse fsf fsi fsm fso fsr fss fzd 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 ifz iid iie iif iii iim iio iir iis im- imd ime imf imi imm imo ims imz 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 ize izi izm izo izz m-f m-o m-r mdd mde mdf mdi mdm mdo mdr mds mdz med mee mef mei mem meo mer mes mez mfd mfe mff mfi mfm mfo mfr mfs mfz mi- mid mie mif mii mim mio mir mis miz mmd mme mmf mmi mmm mmo mmr mms mmz mod moe mof moi mom moo mor mos moz mrd mre mrf mri mrm mro mrr mrs mrz msd mse msf msi msm mso msr mss mzf mzi mzm 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 ofz oid oie oif oii oim oio oir ois oiz om- omd ome omf omi omm omo omr oms omz oo- ood oof ooi oom ooo oor oos or- ord ore orf ori orm oro orr ors orz os- osd ose osf osi osm oso osr oss oze ozm ozo ozs ozz rdd rde rdf rdi rdm rdo rdr rds re- red ree ref rei rem reo rer res rez rfd rfe rff rfi rfm rfo rfr rfs rfz rid rie rif rii rim rio rir ris riz rmd rme rmf rmi rmm rmo rmr rms rod roe rof roi rom roo ror ros roz rrd rrf rri rrm rrr rrs rsd rse rsf rsi rsm rso rsr rss rze rzm rzo sdd sde sdf sdi sdm sdo sdr sds sdz se- sed see sef sei sem seo ser ses sez sfd sfe sff sfi sfm sfo sfr sfs sfz sid sie sif sii sim sio sir sis smd sme smf smi smm smo smr sms smz sod soe sof soi som soo sor sos soz sr- srd sre srf sri srm sro srr srs ss- ssd sse ssf ssi ssm sso ssr sss ssz szd sze szi szr zdf zdm zds zed zee zef zem zeo zer zes zez zfd zfr zfs zid zie zif zim zio zir zis ziz zmd zmm zms zo- zod zoe zof zoi zom zoo zor zos zro zrs zse zsi zsm zsz zzr zzs zzz