-er ddd dde ddf ddk ddl ddm ddr ddu de- ded dee def dek del dem der deu dfd dfe dff dfk dfl dfm dfr dfu dke dkk dkl dkm dkr dku dl- dld dle dlf dlk dll dlm dlr dlu dmd dme dmf dmk dml dmm dmr dmu drd dre drk drl drm drr dru dud due duf duk dul dum dur ed- edd ede edf edk edl edm edr edu eed eee eef eek eel eem eer ef- efd efe eff efl efm efr ekd eke ekf ekl ekr eku eld ele elf elk ell elm elr elu em- emd eme emf emk eml emm emr emu erd ere erf erk erl erm err eru eu- eud eue euf eul eur fdd fde fdf fdk fdl fdm fdr fdu fed fee fef fek fel fem fer feu ffd ffe fff ffk ffl ffm ffr ffu fkf fkk fkl fkm fld fle flf fll flm flr flu fmd fme fmf fml fmm fmr fmu frd fre frf frk frl frm frr fru fud fue fuf fuk ful fum fur fuu kde kdf kdk kdl kdm kdr kdu ke- ked kee kef kek kel kem ker kfd kff kfm kfu kke kkk kkl kkm kkr kku kl- kld klf klm klr klu kmd kme kmf kmk kml kmm kmu krd krf krk krl krr kru kud kue kuk kul kum kur kuu ldd lde ldf ldk ldl ldm ldr ldu led lee lef lek lel lem ler leu lfd lfe lff lfk lfl lfm lfr lfu lkl lkr lld lle llf llk lll llm llr llu lmd lme lmf lmk lml lmm lmr lmu lrd lrf lrk lrm lrr lru lud lue luf luk lul lum lur luu m-f m-r mdd mde mdf mdk mdl mdm mdr mdu med mee mef mek mel mem mer meu mfd mfe mff mfl mfm mfr mfu mkd mke mkk mkl mkm mkr mku mld mle mlf mlk mll mlm mlr mlu mmd mme mmf mmk mml mmm mmr mmu mrd mre mrf mrk mrl mrm mrr mru mud mue muf muk mul mum mur muu rdd rde rdf rdl rdm rdr rdu re- red ree ref rek rel rem rer reu rfd rfe rff rfk rfl rfm rfr rfu rke rkf rkk rkm rku rld rle rlf rll rlm rlr rlu rmd rme rmf rml rmm rmr rrd rrf rrk rrl rrm rrr rru rud rue ruf ruk rum rur ruu udd ude udf udk udl udm udr udu ued uee uef uel uem uer ufd ufe uff ufl ufm ufr ufu uke ukf ukk ukl ukr uku uld ule ulf ulk ull ulm ulr ulu um- umd ume umf uml umm umr umu ur- urd ure urf urk url urm urr uru uue uum uur uuu