-er ddd dde ddf ddl ddr dds ddu ddx de- ded dee def del der des deu dex dfd dfe dff dfl dfr dfs dfu dfx dl- dld dle dlf dll dlr dls dlu dlx drd dre drl drr drs dru drx dsd dse dsf dsl dsr dss dsu dsx dud due duf dul dur dus dux dxd dxl dxr dxs dxx ed- edd ede edf edl edr eds edu edx eed eee eef eel eer ees eex ef- efd efe eff efl efr efs efx eld ele elf ell elr els elu elx erd ere erf erl err ers eru es- esd ese esf esl esr ess esu esx eu- eud eue euf eul eur eus eux ex- exd exe exl exr exs exu exx fdd fde fdf fdl fdr fds fdu fdx fed fee fef fel fer fes feu fex ffd ffe fff ffl ffr ffs ffu ffx fld fle flf fll flr fls flu flx frd fre frf frl frr frs fru fsd fse fsf fsl fsr fss fsu fsx fud fue fuf ful fur fus fuu fux fxe fxr fxs fxu fxx ldd lde ldf ldl ldr lds ldu led lee lef lel ler les leu lex lfd lfe lff lfl lfr lfs lfu lfx lld lle llf lll llr lls llu lrd lrf lrr lrs lru lsd lse lsf lsl lsr lss lsu lud lue luf lul lur lus luu lux lxd lxr lxx rdd rde rdf rdl rdr rds rdu rdx re- red ree ref rel rer res reu rex rfd rfe rff rfl rfr rfs rfu rld rle rlf rll rlr rls rlu rrd rrf rrl rrr rrs rru rsd rse rsf rsl rsr rss rsu rsx rud rue ruf rur rus ruu rux rxr rxs sdd sde sdf sdl sdr sds sdu se- sed see sef sel ser ses seu sex sfd sfe sff sfl sfr sfs sfu sfx sld sle slf sll slr sls slu slx sr- srd sre srf srl srr srs srx ss- ssd sse ssf ssl ssr sss ssu ssx sud sue suf sul sur sus suu sux sxl sxs sxu udd ude udf udl udr uds udu udx ued uee uef uel uer ues ufd ufe uff ufl ufr ufs ufu ufx uld ule ulf ull ulr uls ulu ur- urd ure urf url urr urs uru urx usd use usf usl usr uss usu usx uue uur uus uuu uxf uxr uxu xde xdf xdr xds xed xee xel xer xes xeu xex xfe xfl xfs xfx xld xlf xlr xls xrd xrf xrx xsl xss xue xul xus xxl xxx

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