-er ddd dde ddl ddm ddr dds de- ded dee del dem der des dl- dld dle dll dlm dlr dls dmd dme dml dmm dmr dms drd dre drl drm drr drs dsd dse dsl dsm dsr dss ed- edd ede edl edm edr eds eed eee eel eem eer ees eld ele ell elm elr els em- emd eme eml emm emr ems erd ere erl erm err ers es- esd ese esl esm esr ess ldd lde ldl ldm ldr lds led lee lel lem ler les lld lle lll llm llr lls lmd lme lml lmm lmr lms lrd lrm lrr lrs lsd lse lsl lsm lsr lss m-r mdd mde mdl mdm mdr mds med mee mel mem mer mes mld mle mll mlm mlr mls mmd mme mml mmm mmr mms mrd mre mrl mrm mrr mrs msd mse msl msm msr mss rdd rde rdl rdm rdr rds re- red ree rel rem rer res rld rle rll rlm rlr rls rmd rme rml rmm rmr rms rrd rrl rrm rrr rrs rsd rse rsl rsm rsr rss sdd sde sdl sdm sdr sds se- sed see sel sem ser ses sld sle sll slm slr sls smd sme sml smm smr sms sr- srd sre srl srm srr srs ss- ssd sse ssl ssm ssr sss