-er ddd dde ddg ddi ddn ddo ddr dds de- ded dee deg dei den deo der des dgd dge dgg dgi dgn dgr dgs di- did die dig dii din dio dir dis dnd dne dng dni dnn dno dnr dns dod doe dog doi don doo dor dos drd dre drg dri drn dro drr drs dsd dse dsg dsi dsn dso dsr dss ed- edd ede edg edi edn edo edr eds eed eee eeg een eeo eer ees egd ege egg egi egn ego egr egs eid eie eig eii ein eio eir eis en- end ene eng eni enn eno enr ens eo- eod eoe eog eoi eon eoo eor eos erd ere erg eri ern ero err ers es- esd ese esg esi esn eso esr ess g-d gdd gde gdi gdn gdo gdr gds ge- ged gee geg gei gen geo ger ges ggd ggg ggi ggn ggo ggr ggs gid gie gig gii gin gio gir gis gnd gne gni gnn gno gnr gns god goe gog goi gon goo gor gos grd gre grg gri grn gro grr grs gsd gse gsg gsi gsn gso gsr gss i-d idd ide idg idi idn ido idr ids ie- ied iee ieg iei ien ier ies igd ige igg igi ign igo igr igs iid iie iii iin iio iir iis in- ind ine ing ini inn ino inr ins io- iod ioe iog ioi ion ioo ior ios ir- ird ire irg iri irn iro irr irs is- isd ise isg isi isn iso isr iss n-i ndd nde ndg ndi ndn ndo ndr nds ne- ned nee neg nei nen neo ner nes ngd nge ngg ngi ngn ngo ngs nid nie nig nii nin nio nir nis nne nng nni nnn nno nns no- nod noe nog noi non noo nor nos nrd nre nrg nri nrn nro nrr nrs nsd nse nsg nsi nsn nso nsr nss o-i odd ode odg odi odn odo odr ods oed oee oeg oei oen oeo oer oes ogd oge ogg ogi ogn ogo ogs oid oie oii oin oio oir ois on- ond one ong oni onn ono onr ons oo- ood oog ooi oon ooo oor oos or- ord ore org ori orn oro orr ors os- osd ose osg osi osn oso osr oss rdd rde rdg rdi rdn rdo rdr rds re- red ree reg rei ren reo rer res rgd rge rgg rgi rgn rgo rgr rgs rid rie rig rii rin rio rir ris rnd rng rni rnn rno rnr rns rod roe rog roi ron roo ror ros rrd rrg rri rrn rrr rrs rsd rse rsg rsi rsn rso rsr rss sdd sde sdg sdi sdn sdo sdr sds se- sed see seg sei sen seo ser ses sgd sge sgg sgi sgn sgo sgr sgs sid sie sig sii sin sio sir sis snd sne sng sni snn sno snr sns sod soe sog soi son soo sor sos sr- srd sre srg sri srn sro srr srs ss- ssd sse ssg ssi ssn sso ssr sss