-er -ol ddd dde ddl ddm ddo ddr dds de- ded dee del dem deo der des dl- dld dle dll dlm dlo dlr dls dmd dme dml dmm dmo dmr dms dod doe dol dom doo dor dos drd dre drl drm dro drr drs dsd dse dsl dsm dso dsr dss ed- edd ede edl edm edo edr eds eed eee eel eem eeo eer ees eld ele ell elm elo elr els em- emd eme eml emm emo emr ems eo- eod eoe eol eom eoo eor eos erd ere erl erm ero err ers es- esd ese esl esm eso esr ess ldd lde ldl ldm ldo ldr lds led lee lel lem leo ler les lld lle lll llm llo llr lls lmd lme lml lmm lmo lmr lms lod loe lol lom loo lor los lrd lrm lro lrr lrs lsd lse lsl lsm lso lsr lss m-o m-r mdd mde mdl mdm mdo mdr mds med mee mel mem meo mer mes mld mle mll mlm mlo mlr mls mmd mme mml mmm mmo mmr mms mod moe mol mom moo mor mos mrd mre mrl mrm mro mrr mrs msd mse msl msm mso msr mss odd ode odl odm odo odr ods oed oee oel oem oeo oer oes old ole oll olm olo ols om- omd ome oml omm omo omr oms oo- ood ool oom ooo oor oos or- ord ore orl orm oro orr ors os- osd ose osl osm oso osr oss rdd rde rdl rdm rdo rdr rds re- red ree rel rem reo rer res rld rle rll rlm rlo rlr rls rmd rme rml rmm rmo rmr rms rod roe rol rom roo ror ros rrd rrl rrm rrr rrs rsd rse rsl rsm rso rsr rss sdd sde sdl sdm sdo sdr sds se- sed see sel sem seo ser ses sld sle sll slm slo slr sls smd sme sml smm smo smr sms sod soe sol som soo sor sos sr- srd sre srl srm sro srr srs ss- ssd sse ssl ssm sso ssr sss