-er ddd dde ddf ddi ddl ddm ddr dds ddu de- ded dee def dei del dem der des deu dfd dfe dff dfi dfl dfm dfr dfs dfu di- did die dif dii dil dim dir dis diu dl- dld dle dlf dli dll dlm dlr dls dlu dmd dme dmf dmi dml dmm dmr dms dmu drd dre dri drl drm drr drs dru dsd dse dsf dsi dsl dsm dsr dss dsu dud due duf dui dul dum dur dus ed- edd ede edf edi edl edm edr eds edu eed eee eef eel eem eer ees ef- efd efe eff efi efl efm efr efs eid eie eif eii eil eim eir eis eiu eld ele elf eli ell elm elr els elu em- emd eme emf emi eml emm emr ems emu erd ere erf eri erl erm err ers eru es- esd ese esf esi esl esm esr ess esu eu- eud eue euf eui eul eur eus fdd fde fdf fdi fdl fdm fdr fds fdu fed fee fef fei fel fem fer fes feu ffd ffe fff ffi ffl ffm ffr ffs ffu fid fie fif fii fil fim fir fis fiu fld fle flf fli fll flm flr fls flu fmd fme fmf fmi fml fmm fmr fms fmu frd fre frf fri frl frm frr frs fru fsd fse fsf fsi fsl fsm fsr fss fsu fud fue fuf fui ful fum fur fus fuu i-d i-f idd ide idf idi idl idm idr ids idu ie- ied iee ief iei iel iem ier ies ifd ife iff ifi ifl ifm ifr ifs ifu iid iie iif iii iil iim iir iis iiu il- ild ile ilf ili ill ilm ilr ils ilu im- imd ime imf imi iml imm ims imu ir- ird ire irf iri irl irm irr irs iru is- isd ise isf isi isl ism isr iss isu iu- iud iue iui ium iur ius ldd lde ldf ldi ldl ldm ldr lds ldu led lee lef lei lel lem ler les leu lfd lfe lff lfi lfl lfm lfr lfs lfu lid lie lif lii lil lim lir lis liu lld lle llf lli lll llm llr lls llu lmd lme lmf lmi lml lmm lmr lms lmu lrd lrf lri lrm lrr lrs lru lsd lse lsf lsi lsl lsm lsr lss lsu lud lue luf lui lul lum lur lus luu m-f m-r mdd mde mdf mdi mdl mdm mdr mds mdu med mee mef mei mel mem mer mes meu mfd mfe mff mfi mfl mfm mfr mfs mfu mi- mid mie mif mii mil mim mir mis miu mld mle mlf mli mll mlm mlr mls mlu mmd mme mmf mmi mml mmm mmr mms mmu mrd mre mrf mri mrl mrm mrr mrs mru msd mse msf msi msl msm msr mss msu mud mue muf mui mul mum mur mus muu rdd rde rdf rdi rdl rdm rdr rds rdu re- red ree ref rei rel rem rer res reu rfd rfe rff rfi rfl rfm rfr rfs rfu rid rie rif rii ril rim rir ris rld rle rlf rli rll rlm rlr rls rlu rmd rme rmf rmi rml rmm rmr rms rrd rrf rri rrl rrm rrr rrs rru rsd rse rsf rsi rsl rsm rsr rss rsu rud rue ruf rui rum rur rus ruu sdd sde sdf sdi sdl sdm sdr sds sdu se- sed see sef sei sel sem ser ses seu sfd sfe sff sfi sfl sfm sfr sfs sfu sid sie sif sii sil sim sir sis siu sld sle slf sli sll slm slr sls slu smd sme smf smi sml smm smr sms smu sr- srd sre srf sri srl srm srr srs ss- ssd sse ssf ssi ssl ssm ssr sss ssu sud sue suf sui sul sum sur sus suu udd ude udf udi udl udm udr uds udu ued uee uef uei uel uem uer ues ufd ufe uff ufi ufl ufm ufr ufs ufu uid uie uif uii uil uim uir uis uiu uld ule ulf uli ull ulm ulr uls ulu um- umd ume umf umi uml umm umr ums umu ur- urd ure urf uri url urm urr urs uru usd use usf usi usl usm usr uss usu uue uum uur uus uuu