-er ddd dde ddf ddg ddi ddn ddo ddr dds de- ded dee def deg dei den deo der des dfd dfe dff dfg dfi dfn dfo dfr dfs dgd dge dgf dgg dgi dgn dgr dgs di- did die dif dig dii din dio dir dis dnd dne dnf dng dni dnn dno dnr dns dod doe dof dog doi don doo dor dos drd dre drg dri drn dro drr drs dsd dse dsf dsg dsi dsn dso dsr dss ed- edd ede edf edg edi edn edo edr eds eed eee eef eeg een eeo eer ees ef- efd efe eff efg efi efo efr efs egd ege egf egg egi egn ego egr egs eid eie eif eig eii ein eio eir eis en- end ene enf eng eni enn eno enr ens eo- eod eoe eof eog eoi eon eoo eor eos erd ere erf erg eri ern ero err ers es- esd ese esf esg esi esn eso esr ess fdd fde fdf fdg fdi fdn fdo fdr fds fed fee fef feg fei fen feo fer fes ffd ffe fff ffg ffi ffn ffo ffr ffs fgd fge fgf fgg fgi fgn fgr fgs fid fie fif fig fii fin fir fis fnd fne fnf fng fni fnn fnr fns foe fof fog foi fon foo for fos frd fre frf frg fri frn fro frr frs fsd fse fsf fsg fsi fsn fso fsr fss g-d gdd gde gdf gdi gdn gdo gdr gds ge- ged gee gef geg gei gen geo ger ges gfd gfe gff gfi gfo gfr gfs ggd ggg ggi ggn ggo ggr ggs gid gie gif gig gii gin gio gir gis gnd gne gnf gni gnn gno gnr gns god goe gof gog goi gon goo gor gos grd gre grf grg gri grn gro grr grs gsd gse gsf gsg gsi gsn gso gsr gss i-d i-f idd ide idf idg idi idn ido idr ids ie- ied iee ief ieg iei ien ier ies ifd ife iff ifg ifi ifn ifo ifr ifs igd ige igf igg igi ign igo igr igs iid iie iif iii iin iio iir iis in- ind ine inf ing ini inn ino inr ins io- iod ioe iof iog ioi ion ioo ior ios ir- ird ire irf irg iri irn iro irr irs is- isd ise isf isg isi isn iso isr iss n-i ndd nde ndf ndg ndi ndn ndo ndr nds ne- ned nee nef neg nei nen neo ner nes nfd nfe nff nfi nfn nfo nfr nfs ngd nge ngf ngg ngi ngn ngo ngs nid nie nif nig nii nin nio nir nis nne nnf nng nni nnn nno nns no- nod noe nof nog noi non noo nor nos nrd nre nrf nrg nri nrn nro nrr nrs nsd nse nsf nsg nsi nsn nso nsr nss o-i odd ode odf odg odi odn odo odr ods oed oee oef oeg oei oen oeo oer oes of- ofd ofe off ofg ofi ofn ofo ofr ofs ogd oge ogf ogg ogi ogn ogo ogs oid oie oif oii oin oio oir ois on- ond one onf ong oni onn ono onr ons oo- ood oof oog ooi oon ooo oor oos or- ord ore orf org ori orn oro orr ors os- osd ose osf osg osi osn oso osr oss rdd rde rdf rdg rdi rdn rdo rdr rds re- red ree ref reg rei ren reo rer res rfd rfe rff rfg rfi rfn rfo rfr rfs rgd rge rgf rgg rgi rgn rgo rgr rgs rid rie rif rig rii rin rio rir ris rnd rng rni rnn rno rnr rns rod roe rof rog roi ron roo ror ros rrd rrf rrg rri rrn rrr rrs rsd rse rsf rsg rsi rsn rso rsr rss sdd sde sdf sdg sdi sdn sdo sdr sds se- sed see sef seg sei sen seo ser ses sfd sfe sff sfg sfi sfn sfo sfr sfs sgd sge sgf sgg sgi sgn sgo sgr sgs sid sie sif sig sii sin sio sir sis snd sne snf sng sni snn sno snr sns sod soe sof sog soi son soo sor sos sr- srd sre srf srg sri srn sro srr srs ss- ssd sse ssf ssg ssi ssn sso ssr sss