-er ddd dde ddf ddm ddo ddq ddr ddu de- ded dee def dem deo deq der deu dfd dfe dff dfm dfo dfq dfr dfu dmd dme dmf dmm dmo dmr dmu dod doe dof dom doo doq dor dou dqe drd dre drm dro drq drr dru dud due duf dum duo dur ed- edd ede edf edm edo edr edu eed eee eef eem eeo eer ef- efd efe eff efm efo efr em- emd eme emf emm emo emr emu eo- eod eoe eof eom eoo eoq eor eou eqe eqf eqq equ erd ere erf erm ero erq err eru eu- eud eue euf eur fdd fde fdf fdm fdo fdr fdu fed fee fef fem feo fer feu ffd ffe fff ffm ffo ffr ffu fmd fme fmf fmm fmo fmr fmu foe fof fom foo for fou frd fre frf frm fro frq frr fru fud fue fuf fum fuo fur fuu m-f m-o m-r mdd mde mdf mdm mdo mdq mdr mdu med mee mef mem meo meq mer meu mfd mfe mff mfm mfo mfq mfr mfu mmd mme mmf mmm mmo mmr mmu mod moe mof mom moo mor mou mqf mqr mrd mre mrf mrm mro mrq mrr mru mud mue muf mum mur muu odd ode odf odm odo odr odu oed oee oef oem oeo oer of- ofd ofe off ofm ofo ofr ofu om- omd ome omf omm omo omr omu oo- ood oof oom ooo oor oqo or- ord ore orf orm oro orr oru ou- oud oue ouf oum ouo our qdr qed qee qef qem qeo qfd qfe qff qme qmf qmr qmu qof qom qoo qor qqq qqu qre qrm qru qu- qud que qum quo qur rdd rde rdf rdm rdo rdr rdu re- red ree ref rem reo req rer reu rfd rfe rff rfm rfo rfq rfr rfu rmd rme rmf rmm rmo rmq rmr rod roe rof rom roo ror rou rqm rrd rrf rrm rrq rrr rru rud rue ruf rum ruo rur ruu udd ude udf udm udo udr udu ued uee uef uem uer ufd ufe uff ufm ufo ufr ufu um- umd ume umf umm umo umr umu uod uoe uom uoo uor ur- urd ure urf urm uro urr uru uue uum uur uuu