-er ddd dde ddf ddg ddi ddo ddr dds ddu de- ded dee def deg dei deo der des deu dfd dfe dff dfg dfi dfo dfr dfs dfu dgd dge dgf dgg dgi dgr dgs dgu di- did die dif dig dii dio dir dis diu dod doe dof dog doi doo dor dos dou drd dre drg dri dro drr drs dru dsd dse dsf dsg dsi dso dsr dss dsu dud due duf dug dui duo dur dus ed- edd ede edf edg edi edo edr eds edu eed eee eef eeg eeo eer ees ef- efd efe eff efg efi efo efr efs egd ege egf egg egi ego egr egs egu eid eie eif eig eii eio eir eis eiu eo- eod eoe eof eog eoi eoo eor eos eou erd ere erf erg eri ero err ers eru es- esd ese esf esg esi eso esr ess esu eu- eud eue euf eug eui eur eus fdd fde fdf fdg fdi fdo fdr fds fdu fed fee fef feg fei feo fer fes feu ffd ffe fff ffg ffi ffo ffr ffs ffu fgd fge fgf fgg fgi fgr fgs fid fie fif fig fii fir fis fiu foe fof fog foi foo for fos fou frd fre frf frg fri fro frr frs fru fsd fse fsf fsg fsi fso fsr fss fsu fud fue fuf fug fui fuo fur fus fuu g-d gdd gde gdf gdi gdo gdr gds gdu ge- ged gee gef geg gei geo ger ges geu gfd gfe gff gfi gfo gfr gfs ggd ggg ggi ggo ggr ggs ggu gid gie gif gig gii gio gir gis giu god goe gof gog goi goo gor gos gou grd gre grf grg gri gro grr grs gru gsd gse gsf gsg gsi gso gsr gss gsu gu- gud gue guf gug gui guo gur gus guu i-d i-f idd ide idf idg idi ido idr ids idu ie- ied iee ief ieg iei ier ies ifd ife iff ifg ifi ifo ifr ifs ifu igd ige igf igg igi igo igr igs igu iid iie iif iii iio iir iis iiu io- iod ioe iof iog ioi ioo ior ios iou ir- ird ire irf irg iri iro irr irs iru is- isd ise isf isg isi iso isr iss isu iu- iud iue iug iui iur ius o-i odd ode odf odg odi odo odr ods odu oed oee oef oeg oei oeo oer oes of- ofd ofe off ofg ofi ofo ofr ofs ofu ogd oge ogf ogg ogi ogo ogs oid oie oif oii oio oir ois oiu oo- ood oof oog ooi ooo oor oos or- ord ore orf org ori oro orr ors oru os- osd ose osf osg osi oso osr oss osu ou- oud oue ouf oui ouo our ous rdd rde rdf rdg rdi rdo rdr rds rdu re- red ree ref reg rei reo rer res reu rfd rfe rff rfg rfi rfo rfr rfs rfu rgd rge rgf rgg rgi rgo rgr rgs rid rie rif rig rii rio rir ris rod roe rof rog roi roo ror ros rou rrd rrf rrg rri rrr rrs rru rsd rse rsf rsg rsi rso rsr rss rsu rud rue ruf rug rui ruo rur rus ruu sdd sde sdf sdg sdi sdo sdr sds sdu se- sed see sef seg sei seo ser ses seu sfd sfe sff sfg sfi sfo sfr sfs sfu sgd sge sgf sgg sgi sgo sgr sgs sgu sid sie sif sig sii sio sir sis siu sod soe sof sog soi soo sor sos sou sr- srd sre srf srg sri sro srr srs ss- ssd sse ssf ssg ssi sso ssr sss ssu sud sue suf sug sui suo sur sus suu udd ude udf udg udi udo udr uds udu ued uee uef ueg uei uer ues ufd ufe uff ufg ufi ufo ufr ufs ufu uge ugf ugg ugi ugo ugr ugs ugu uid uie uif uig uii uio uir uis uiu uod uoe uog uoo uor uos ur- urd ure urf urg uri uro urr urs uru usd use usf usg usi uso usr uss usu uue uug uur uus uuu