-er -ol ddd dde ddf ddi ddl ddo ddr dds de- ded dee def dei del deo der des dfd dfe dff dfi dfl dfo dfr dfs di- did die dif dii dil dio dir dis dl- dld dle dlf dli dll dlo dlr dls dod doe dof doi dol doo dor dos drd dre dri drl dro drr drs dsd dse dsf dsi dsl dso dsr dss ed- edd ede edf edi edl edo edr eds eed eee eef eel eeo eer ees ef- efd efe eff efi efl efo efr efs eid eie eif eii eil eio eir eis eld ele elf eli ell elo elr els eo- eod eoe eof eoi eol eoo eor eos erd ere erf eri erl ero err ers es- esd ese esf esi esl eso esr ess fdd fde fdf fdi fdl fdo fdr fds fed fee fef fei fel feo fer fes ffd ffe fff ffi ffl ffo ffr ffs fid fie fif fii fil fir fis fld fle flf fli fll flo flr fls foe fof foi fol foo for fos frd fre frf fri frl fro frr frs fsd fse fsf fsi fsl fso fsr fss i-d i-f idd ide idf idi idl ido idr ids ie- ied iee ief iei iel ier ies ifd ife iff ifi ifl ifo ifr ifs iid iie iif iii iil iio iir iis il- ild ile ilf ili ill ilo ilr ils io- iod ioe iof ioi iol ioo ior ios ir- ird ire irf iri irl iro irr irs is- isd ise isf isi isl iso isr iss ldd lde ldf ldi ldl ldo ldr lds led lee lef lei lel leo ler les lfd lfe lff lfi lfl lfo lfr lfs lid lie lif lii lil lio lir lis lld lle llf lli lll llo llr lls lod loe lof loi lol loo lor los lrd lrf lri lro lrr lrs lsd lse lsf lsi lsl lso lsr lss o-i odd ode odf odi odl odo odr ods oed oee oef oei oel oeo oer oes of- ofd ofe off ofi ofl ofo ofr ofs oid oie oif oii oil oio oir ois old ole olf oli oll olo ols oo- ood oof ooi ool ooo oor oos or- ord ore orf ori orl oro orr ors os- osd ose osf osi osl oso osr oss rdd rde rdf rdi rdl rdo rdr rds re- red ree ref rei rel reo rer res rfd rfe rff rfi rfl rfo rfr rfs rid rie rif rii ril rio rir ris rld rle rlf rli rll rlo rlr rls rod roe rof roi rol roo ror ros rrd rrf rri rrl rrr rrs rsd rse rsf rsi rsl rso rsr rss sdd sde sdf sdi sdl sdo sdr sds se- sed see sef sei sel seo ser ses sfd sfe sff sfi sfl sfo sfr sfs sid sie sif sii sil sio sir sis sld sle slf sli sll slo slr sls sod soe sof soi sol soo sor sos sr- srd sre srf sri srl sro srr srs ss- ssd sse ssf ssi ssl sso ssr sss