-er ddd dde ddi ddk ddm ddo ddr de- ded dee dei dek dem deo der dev di- did die dii dik dim dio dir div dke dki dkk dkm dko dkr dmd dme dmi dmk dmm dmo dmr dmv dod doe doi dok dom doo dor dov drd dre dri drk drm dro drr drv dvd dve dvi dvk dvm dvr ed- edd ede edi edk edm edo edr eed eee eek eem eeo eer eev eid eie eii eik eim eio eir eiv ekd eke eki eko ekr ekv em- emd eme emi emk emm emo emr emv eo- eod eoe eoi eok eom eoo eor erd ere eri erk erm ero err erv evd eve evi evm evo evr evv i-d i-v idd ide idi idk idm ido idr idv ie- ied iee iei iek iem ier iev iid iie iii iim iio iir ike iki ikk iko ikr ikv im- imd ime imi imm imo imv io- iod ioe ioi iom ioo ior iov ir- ird ire iri irk irm iro irr irv ivd ive ivi ivo ivr ivv kde kdk kdm kdo kdr ke- ked kee kei kek kem keo ker kev kid kie kii kik kim kio kir kiv kke kki kkk kkm kkr kkv kmd kme kmi kmk kmm kmo kod koe koi kok kom koo kor krd kri krk kro krr krv kvi kvk kvm kvo kvr kvv m-o m-r m-v mdd mde mdi mdk mdm mdo mdr mdv med mee mei mek mem meo mer mev mi- mid mie mii mik mim mio mir miv mkd mke mkk mkm mko mkr mkv mmd mme mmi mmk mmm mmo mmr mmv mod moe moi mok mom moo mor mov mrd mre mri mrk mrm mro mrr mrv mvd mve mvi mvm mvo mvr mvv o-i odd ode odi odm odo odr odv oed oee oei oem oeo oer oid oie oii oik oim oio oir oiv okd oke oki okk oko okr om- omd ome omi omm omo omr omv oo- ood ooi ook oom ooo oor oov or- ord ore ori ork orm oro orr orv ov- ovd ove ovi ovo ovv rdd rde rdi rdm rdo rdr rdv re- red ree rei rek rem reo rer rev rid rie rii rik rim rio rir riv rke rkk rkm rko rkv rmd rme rmi rmm rmo rmr rmv rod roe roi rok rom roo ror rov rrd rri rrk rrm rrr rvd rve rvi rvm rvo rvr rvv v-e vdd vde vdi vdk vdm vdo vdr vdv ved vee vei vek vem veo ver vi- vid vie vii vik vim vio vir viv vkm vm- vmd vmi vmm vmo vmr vod voe voi vok vom voo vor vov vrd vre vri vrk vrm vrr vvi vvm vvo vvr vvv