-er ddd dde ddg ddi ddk ddn ddo ddr dds de- ded dee deg dei dek den deo der des dgd dge dgg dgi dgk dgn dgr dgs di- did die dig dii dik din dio dir dis dke dkg dki dkk dko dkr dks dnd dne dng dni dnk dnn dno dnr dns dod doe dog doi dok don doo dor dos drd dre drg dri drk drn dro drr drs dsd dse dsg dsi dsk dsn dso dsr dss ed- edd ede edg edi edk edn edo edr eds eed eee eeg eek een eeo eer ees egd ege egg egi egn ego egr egs eid eie eig eii eik ein eio eir eis ekd eke ekg eki eko ekr eks en- end ene eng eni enk enn eno enr ens eo- eod eoe eog eoi eok eon eoo eor eos erd ere erg eri erk ern ero err ers es- esd ese esg esi esk esn eso esr ess g-d gdd gde gdi gdk gdn gdo gdr gds ge- ged gee geg gei gek gen geo ger ges ggd ggg ggi ggn ggo ggr ggs gid gie gig gii gik gin gio gir gis gkd gkn gko gks gnd gne gni gnn gno gnr gns god goe gog goi gok gon goo gor gos grd gre grg gri grk grn gro grr grs gsd gse gsg gsi gsk gsn gso gsr gss i-d idd ide idg idi idk idn ido idr ids ie- ied iee ieg iei iek ien ier ies igd ige igg igi igk ign igo igr igs iid iie iii iin iio iir iis ike iki ikk iko ikr iks in- ind ine ing ini ink inn ino inr ins io- iod ioe iog ioi ion ioo ior ios ir- ird ire irg iri irk irn iro irr irs is- isd ise isg isi isk isn iso isr iss kde kdg kdk kdo kdr kds ke- ked kee keg kei kek ken keo ker kes kgd kgi kgo kgs kid kie kig kii kik kin kio kir kis kke kki kkk kkn kkr kks kn- knd kne kng kni knk knn kno knr kod koe kog koi kok kon koo kor kos krd krg kri krk krn kro krr krs ksd kse ksg ksi ksk ksn kso ksr kss n-i ndd nde ndg ndi ndk ndn ndo ndr nds ne- ned nee neg nei nek nen neo ner nes ngd nge ngg ngi ngk ngn ngo ngs nid nie nig nii nik nin nio nir nis nke nki nkk nkn nko nkr nks nne nng nni nnk nnn nno nns no- nod noe nog noi nok non noo nor nos nrd nre nrg nri nrk nrn nro nrr nrs nsd nse nsg nsi nsk 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 oik oin oio oir ois okd oke okg oki okk oko okr oks on- ond one ong oni onk onn ono onr ons oo- ood oog ooi ook oon ooo oor oos or- ord ore org ori ork orn oro orr ors os- osd ose osg osi osk osn oso osr oss rdd rde rdg rdi rdn rdo rdr rds re- red ree reg rei rek ren reo rer res rgd rge rgg rgi rgk rgn rgo rgr rgs rid rie rig rii rik rin rio rir ris rke rkg rkk rko rks rnd rng rni rnn rno rnr rns rod roe rog roi rok ron roo ror ros rrd rrg rri rrk rrn rrr rrs rsd rse rsg rsi rsk rsn rso rsr rss sdd sde sdg sdi sdk sdn sdo sdr sds se- sed see seg sei sek sen seo ser ses sgd sge sgg sgi sgk sgn sgo sgr sgs sid sie sig sii sik sin sio sir sis sk- skd ske skg ski skk sko skr sks snd sne sng sni snk snn sno snr sns sod soe sog soi sok son soo sor sos sr- srd sre srg sri srk srn sro srr srs ss- ssd sse ssg ssi ssk ssn sso ssr sss