-er -ol ddd dde ddf ddg ddi ddl ddo ddr dds de- ded dee def deg dei del deo der des dfd dfe dff dfg dfi dfl dfo dfr dfs dgd dge dgf dgg dgi dgl dgr dgs di- did die dif dig dii dil dio dir dis dl- dld dle dlf dlg dli dll dlo dlr dls dod doe dof dog doi dol doo dor dos drd dre drg dri drl dro drr drs dsd dse dsf dsg dsi dsl dso dsr dss ed- edd ede edf edg edi edl edo edr eds eed eee eef eeg eel eeo eer ees ef- efd efe eff efg efi efl efo efr efs egd ege egf egg egi egl ego egr egs eid eie eif eig eii eil eio eir eis eld ele elf elg eli ell elo elr els eo- eod eoe eof eog eoi eol eoo eor eos erd ere erf erg eri erl ero err ers es- esd ese esf esg esi esl eso esr ess fdd fde fdf fdg fdi fdl fdo fdr fds fed fee fef feg fei fel feo fer fes ffd ffe fff ffg ffi ffl ffo ffr ffs fgd fge fgf fgg fgi fgl fgr fgs fid fie fif fig fii fil fir fis fld fle flf flg fli fll flo flr fls foe fof fog foi fol foo for fos frd fre frf frg fri frl fro frr frs fsd fse fsf fsg fsi fsl fso fsr fss g-d gdd gde gdf gdi gdl gdo gdr gds ge- ged gee gef geg gei gel geo ger ges gfd gfe gff gfi gfl gfo gfr gfs ggd ggg ggi ggo ggr ggs gid gie gif gig gii gil gio gir gis gld gle glf glg gli gll glo glr gls god goe gof gog goi gol goo gor gos grd gre grf grg gri grl gro grr grs gsd gse gsf gsg gsi gsl gso gsr gss i-d i-f idd ide idf idg idi idl ido idr ids ie- ied iee ief ieg iei iel ier ies ifd ife iff ifg ifi ifl ifo ifr ifs igd ige igf igg igi igl igo igr igs iid iie iif iii iil iio iir iis il- ild ile ilf ilg ili ill ilo ilr ils io- iod ioe iof iog ioi iol ioo ior ios ir- ird ire irf irg iri irl iro irr irs is- isd ise isf isg isi isl iso isr iss ldd lde ldf ldg ldi ldl ldo ldr lds led lee lef leg lei lel leo ler les lfd lfe lff lfg lfi lfl lfo lfr lfs lgd lge lgf lgg lgi lgl lgo lgr lgs lid lie lif lig lii lil lio lir lis lld lle llf llg lli lll llo llr lls lod loe lof log loi lol loo lor los lrd lrf lrg lri lro lrr lrs lsd lse lsf lsg lsi lsl lso lsr lss o-i odd ode odf odg odi odl odo odr ods oed oee oef oeg oei oel oeo oer oes of- ofd ofe off ofg ofi ofl ofo ofr ofs ogd oge ogf ogg ogi ogl ogo ogs oid oie oif oii oil oio oir ois old ole olf olg oli oll olo ols oo- ood oof oog ooi ool ooo oor oos or- ord ore orf org ori orl oro orr ors os- osd ose osf osg osi osl oso osr oss rdd rde rdf rdg rdi rdl rdo rdr rds re- red ree ref reg rei rel reo rer res rfd rfe rff rfg rfi rfl rfo rfr rfs rgd rge rgf rgg rgi rgo rgr rgs rid rie rif rig rii ril rio rir ris rld rle rlf rlg rli rll rlo rlr rls rod roe rof rog roi rol roo ror ros rrd rrf rrg rri rrl rrr rrs rsd rse rsf rsg rsi rsl rso rsr rss sdd sde sdf sdg sdi sdl sdo sdr sds se- sed see sef seg sei sel seo ser ses sfd sfe sff sfg sfi sfl sfo sfr sfs sgd sge sgf sgg sgi sgl sgo sgr sgs sid sie sif sig sii sil sio sir sis sld sle slf slg sli sll slo slr sls sod soe sof sog soi sol soo sor sos sr- srd sre srf srg sri srl sro srr srs ss- ssd sse ssf ssg ssi ssl sso ssr sss