-er ddd dde ddi ddm ddo ddr ddx de- ded dee dei dem deo der dev dex di- did die dii dim dio dir div dix dmd dme dmi dmm dmo dmr dmv dmx dod doe doi dom doo dor dov dox drd dre dri drm dro drr drv drx dvd dve dvi dvm dvr dvx dxd dxi dxo dxr dxx ed- edd ede edi edm edo edr edx eed eee eem eeo eer eev eex eid eie eii eim eio eir eiv eix em- emd eme emi emm emo emr emv emx eo- eod eoe eoi eom eoo eor erd ere eri erm ero err erv evd eve evi evm evo evr evv ex- exd exe exi exo exr exx i-d i-v idd ide idi idm ido idr idv idx ie- ied iee iei iem ier iev iex iid iie iii iim iio iir iix im- imd ime imi imm imo imv imx io- iod ioe ioi iom ioo ior iov ir- ird ire iri irm iro irr irv irx ivd ive ivi ivo ivr ivv ivx ixe ixi m-o m-r m-v mdd mde mdi mdm mdo mdr mdv mdx med mee mei mem meo mer mev mex mi- mid mie mii mim mio mir miv mix mmd mme mmi mmm mmo mmr mmv mmx mod moe moi mom moo mor mov mox mrd mre mri mrm mro mrr mrv mrx mvd mve mvi mvm mvo mvr mvv mxd mxi mxr o-i odd ode odi odm odo odr odv oed oee oei oem oeo oer oex oid oie oii oim oio oir oiv om- omd ome omi omm omo omr omv omx oo- ood ooi oom ooo oor oov oox or- ord ore ori orm oro orr orv orx ov- ovd ove ovi ovo ovv ox- oxi oxo oxx rdd rde rdi rdm rdo rdr rdv rdx re- red ree rei rem reo rer rev rex rid rie rii rim rio rir riv rix rmd rme rmi rmm rmo rmr rmv rmx rod roe roi rom roo ror rov rox rrd rri rrm rrr rvd rve rvi rvm rvo rvr rvv rxr v-e vdd vde vdi vdm vdo vdr vdv vdx ved vee vei vem veo ver vex vi- vid vie vii vim vio vir viv vix vm- vmd vmi vmm vmo vmr vmx vod voe voi vom voo vor vov vox vrd vre vri vrm vrr vvi vvm vvo vvr vvv vxd vxr vxv xde xdi xdm xdr xdv xed xee xem xer xev xex xie xii xio xiv xix xmd xmi xmm xmo xmr xmx xod xoi xom xoo xor xov xox xrd xrx xvi xxi xxo xxv xxx