-er -ol ddd dde ddf ddi ddl ddm ddo ddr dds de- ded dee def dei del dem deo der des dfd dfe dff dfi dfl dfm dfo dfr dfs di- did die dif dii dil dim dio dir dis dl- dld dle dlf dli dll dlm dlo dlr dls dmd dme dmf dmi dml dmm dmo dmr dms dod doe dof doi dol dom doo dor dos drd dre dri drl drm dro drr drs dsd dse dsf dsi dsl dsm dso dsr dss ed- edd ede edf edi edl edm edo edr eds eed eee eef eel eem eeo eer ees ef- efd efe eff efi efl efm efo efr efs eid eie eif eii eil eim eio eir eis eld ele elf eli ell elm elo elr els em- emd eme emf emi eml emm emo emr ems eo- eod eoe eof eoi eol eom eoo eor eos erd ere erf eri erl erm ero err ers es- esd ese esf esi esl esm eso esr ess fdd fde fdf fdi fdl fdm fdo fdr fds fed fee fef fei fel fem feo fer fes ffd ffe fff ffi ffl ffm ffo ffr ffs fid fie fif fii fil fim fir fis fld fle flf fli fll flm flo flr fls fmd fme fmf fmi fml fmm fmo fmr fms foe fof foi fol fom foo for fos frd fre frf fri frl frm fro frr frs fsd fse fsf fsi fsl fsm fso fsr fss i-d i-f idd ide idf idi idl idm ido idr ids ie- ied iee ief iei iel iem ier ies ifd ife iff ifi ifl ifm ifo ifr ifs iid iie iif iii iil iim iio iir iis il- ild ile ilf ili ill ilm ilo ilr ils im- imd ime imf imi iml imm imo ims io- iod ioe iof ioi iol iom ioo ior ios ir- ird ire irf iri irl irm iro irr irs is- isd ise isf isi isl ism iso isr iss ldd lde ldf ldi ldl ldm ldo ldr lds led lee lef lei lel lem leo ler les lfd lfe lff lfi lfl lfm lfo lfr lfs lid lie lif lii lil lim lio lir lis lld lle llf lli lll llm llo llr lls lmd lme lmf lmi lml lmm lmo lmr lms lod loe lof loi lol lom loo lor los lrd lrf lri lrm lro lrr lrs lsd lse lsf lsi lsl lsm lso lsr lss m-f m-o m-r mdd mde mdf mdi mdl mdm mdo mdr mds med mee mef mei mel mem meo mer mes mfd mfe mff mfi mfl mfm mfo mfr mfs mi- mid mie mif mii mil mim mio mir mis mld mle mlf mli mll mlm mlo mlr mls mmd mme mmf mmi mml mmm mmo mmr mms mod moe mof moi mol mom moo mor mos mrd mre mrf mri mrl mrm mro mrr mrs msd mse msf msi msl msm mso msr mss o-i odd ode odf odi odl odm odo odr ods oed oee oef oei oel oem oeo oer oes of- ofd ofe off ofi ofl ofm ofo ofr ofs oid oie oif oii oil oim oio oir ois old ole olf oli oll olm olo ols om- omd ome omf omi oml omm omo omr oms oo- ood oof ooi ool oom ooo oor oos or- ord ore orf ori orl orm oro orr ors os- osd ose osf osi osl osm oso osr oss rdd rde rdf rdi rdl rdm rdo rdr rds re- red ree ref rei rel rem reo rer res rfd rfe rff rfi rfl rfm rfo rfr rfs rid rie rif rii ril rim rio rir ris rld rle rlf rli rll rlm rlo rlr rls rmd rme rmf rmi rml rmm rmo rmr rms rod roe rof roi rol rom roo ror ros rrd rrf rri rrl rrm rrr rrs rsd rse rsf rsi rsl rsm rso rsr rss sdd sde sdf sdi sdl sdm sdo sdr sds se- sed see sef sei sel sem seo ser ses sfd sfe sff sfi sfl sfm sfo sfr sfs sid sie sif sii sil sim sio sir sis sld sle slf sli sll slm slo slr sls smd sme smf smi sml smm smo smr sms sod soe sof soi sol som soo sor sos sr- srd sre srf sri srl srm sro srr srs ss- ssd sse ssf ssi ssl ssm sso ssr sss