-er -ol ddd dde ddl ddm ddo ddr de- ded dee del dem deo der dev dl- dld dle dll dlm dlo dlr dlv dmd dme dml dmm dmo dmr dmv dod doe dol dom doo dor dov drd dre drl drm dro drr drv dvd dve dvl dvm dvr ed- edd ede edl edm edo edr eed eee eel eem eeo eer eev eld ele ell elm elo elr elv em- emd eme eml emm emo emr emv eo- eod eoe eol eom eoo eor erd ere erl erm ero err erv evd eve evl evm evo evr evv ldd lde ldl ldm ldo ldr ldv led lee lel lem leo ler lev lld lle lll llm llo llr llv lmd lme lml lmm lmo lmr lmv lod loe lol lom loo lor lov lrd lrm lro lrr lrv lvd lve lvl lvm lvr lvv m-o m-r m-v mdd mde mdl mdm mdo mdr mdv med mee mel mem meo mer mev mld mle mll mlm mlo mlr mlv mmd mme mml mmm mmo mmr mmv mod moe mol mom moo mor mov mrd mre mrl mrm mro mrr mrv mvd mve mvl mvm mvo mvr mvv odd ode odl odm odo odr odv oed oee oel oem oeo oer old ole oll olm olo om- omd ome oml omm omo omr omv oo- ood ool oom ooo oor oov or- ord ore orl orm oro orr orv ov- ovd ove ovl ovo ovv rdd rde rdl rdm rdo rdr rdv re- red ree rel rem reo rer rev rld rle rll rlm rlo rlr rmd rme rml rmm rmo rmr rmv rod roe rol rom roo ror rov rrd rrl rrm rrr rvd rve rvl rvm rvo rvr rvv v-e vdd vde vdl vdm vdo vdr vdv ved vee vel vem veo ver vl- vld vle vll vlm vlo vlv vm- vmd vmm vmo vmr vod voe vol vom voo vor vov vrd vre vrm vrr vvm vvo vvr vvv