-er ddd dde ddi ddm ddo ddr ddu ddx de- ded dee dei dem deo der deu dex di- did die dii dim dio dir diu dix dmd dme dmi dmm dmo dmr dmu dmx dod doe doi dom doo dor dou dox drd dre dri drm dro drr dru drx dud due dui dum duo dur dux dxd dxi dxo dxr dxx ed- edd ede edi edm edo edr edu edx eed eee eem eeo eer eex eid eie eii eim eio eir eiu eix em- emd eme emi emm emo emr emu emx eo- eod eoe eoi eom eoo eor eou erd ere eri erm ero err eru eu- eud eue eui eur eux ex- exd exe exi exo exr exu exx i-d idd ide idi idm ido idr idu idx ie- ied iee iei iem ier iex iid iie iii iim iio iir iiu iix im- imd ime imi imm imo imu imx io- iod ioe ioi iom ioo ior iou ir- ird ire iri irm iro irr iru irx iu- iud iue iui ium iur ixe ixi m-o m-r mdd mde mdi mdm mdo mdr mdu mdx med mee mei mem meo mer meu mex mi- mid mie mii mim mio mir miu mix mmd mme mmi mmm mmo mmr mmu mmx mod moe moi mom moo mor mou mox mrd mre mri mrm mro mrr mru mrx mud mue mui mum mur muu mux mxd mxi mxr mxu o-i odd ode odi odm odo odr odu oed oee oei oem oeo oer oex oid oie oii oim oio oir oiu om- omd ome omi omm omo omr omu omx oo- ood ooi oom ooo oor oox or- ord ore ori orm oro orr oru orx ou- oud oue oui oum ouo our ox- oxi oxo oxx rdd rde rdi rdm rdo rdr rdu rdx re- red ree rei rem reo rer reu rex rid rie rii rim rio rir rix rmd rme rmi rmm rmo rmr rmx rod roe roi rom roo ror rou rox rrd rri rrm rrr rru rud rue rui rum ruo rur ruu rux rxr udd ude udi udm udo udr udu udx ued uee uei uem uer uid uie uii uim uio uir uiu um- umd ume umi umm umo umr umu uod uoe uom uoo uor uox ur- urd ure uri urm uro urr uru urx uue uum uur uuu uxo uxr uxu xde xdi xdm xdr xed xee xem xer xeu xex xie xii xio xiu xix xmd xmi xmm xmo xmr xmu xmx xod xoi xom xoo xor xox xrd xrx xue xui xxi xxo xxx