-er ddd dde ddg ddi ddk ddn ddo ddp ddr dds de- ded dee deg dei dek den deo dep der des dgd dge dgg dgi dgk dgn dgp dgr dgs di- did die dig dii dik din dio dip dir dis dke dkg dki dkk dko dkp dkr dks dnd dne dng dni dnk dnn dno dnp dnr dns dod doe dog doi dok don doo dop dor dos dpd dpe dpg dpi dpk dpn dpo dpp dpr dps drd dre drg dri drk drn dro drp drr drs dsd dse dsg dsi dsk dsn dso dsp dsr dss ed- edd ede edg edi edk edn edo edp edr eds eed eee eeg eek een eeo eep eer ees egd ege egg egi egn ego egp egr egs eid eie eig eii eik ein eio eip eir eis ekd eke ekg eki eko ekp ekr eks en- end ene eng eni enk enn eno enp enr ens eo- eod eoe eog eoi eok eon eoo eop eor eos ep- epd epe epg epi epn epo epp epr eps erd ere erg eri erk ern ero erp err ers es- esd ese esg esi esk esn eso esp esr ess g-d g-p gdd gde gdi gdk gdn gdo gdp gdr gds ge- ged gee geg gei gek gen geo gep ger ges ggd ggg ggi ggn ggo ggp ggr ggs gid gie gig gii gik gin gio gip gir gis gkd gkn gko gkp gks gnd gne gni gnn gno gnp gnr gns god goe gog goi gok gon goo gop gor gos gpd gpe gpg gpi gpk gpn gpo gpp gpr gps grd gre grg gri grk grn gro grp grr grs gsd gse gsg gsi gsk gsn gso gsp gsr gss i-d idd ide idg idi idk idn ido idp idr ids ie- ied iee ieg iei iek ien iep ier ies igd ige igg igi igk ign igo igp igr igs iid iie iii iin iio iip iir iis ike iki ikk iko ikr iks in- ind ine ing ini ink inn ino inp inr ins io- iod ioe iog ioi ion ioo iop ior ios ipd ipe ipg ipi ipn ipo ipp ipr ips ir- ird ire irg iri irk irn iro irp irr irs is- isd ise isg isi isk isn iso isp isr iss kde kdg kdk kdo kdp kdr kds ke- ked kee keg kei kek ken keo kep ker kes kgd kgi kgo kgp kgs kid kie kig kii kik kin kio kip kir kis kke kki kkk kkn kkp kkr kks kn- knd kne kng kni knk knn kno knp knr kod koe kog koi kok kon koo kop kor kos kpd kpe kpi kpk kpn kpo kpp kpr kps krd krg kri krk krn kro krp krr krs ksd kse ksg ksi ksk ksn kso ksp ksr kss n-i ndd nde ndg ndi ndk ndn ndo ndp ndr nds ne- ned nee neg nei nek nen neo nep ner nes ngd nge ngg ngi ngk ngn ngo ngp ngs nid nie nig nii nik nin nio nip nir nis nke nki nkk nkn nko nkp nkr nks nne nng nni nnk nnn nno nnp nns no- nod noe nog noi nok non noo nop nor nos npd npe npg npi npn npo npp npr nps nrd nre nrg nri nrk nrn nro nrp nrr nrs nsd nse nsg nsi nsk nsn nso nsp nsr nss o-i odd ode odg odi odn odo odp odr ods oed oee oeg oei oen oeo oep oer oes ogd oge ogg ogi ogn ogo ogp ogs oid oie oii oik oin oio oip oir ois okd oke okg oki okk oko okp okr oks on- ond one ong oni onk onn ono onp onr ons oo- ood oog ooi ook oon ooo oop oor oos op- opd ope opg opi opk opn opo opp opr ops or- ord ore org ori ork orn oro orp orr ors os- osd ose osg osi osk osn oso osp osr oss p-p pdd pde pdg pdi pdk pdn pdo pdp pdr pds ped pee peg pei pek pen peo pep per pes pgd pge pgg pgi pgk pgn pgo pgp pgr pgs pid pie pig pii pik pin pio pip pir pis pkd pke pkg pki pkn pko pkp pkr pks pn- pnd pne png pni pnk pnn pno pnp pnr pns pod poe pog poi pok pon poo pop por pos ppd ppe ppg ppi ppk ppn ppo ppp ppr pps prd pre prg pri prk prn pro prp prr prs ps- psd pse psg psi psk psn pso psp psr pss rdd rde rdg rdi rdn rdo rdp rdr rds re- red ree reg rei rek ren reo rep rer res rgd rge rgg rgi rgk rgn rgo rgp rgr rgs rid rie rig rii rik rin rio rip rir ris rke rkg rkk rko rkp rks rnd rng rni rnn rno rnp rnr rns rod roe rog roi rok ron roo rop ror ros rpd rpe rpg rpi rpk rpn rpo rpp rpr rps rrd rrg rri rrk rrn rrp rrr rrs rsd rse rsg rsi rsk rsn rso rsp rsr rss sdd sde sdg sdi sdk sdn sdo sdp sdr sds se- sed see seg sei sek sen seo sep ser ses sgd sge sgg sgi sgk sgn sgo sgp sgr sgs sid sie sig sii sik sin sio sip sir sis sk- skd ske skg ski skk sko skp skr sks snd sne sng sni snk snn sno snp snr sns sod soe sog soi sok son soo sop sor sos spd spe spg spi spk spn spo spp spr sps sr- srd sre srg sri srk srn sro srp srr srs ss- ssd sse ssg ssi ssk ssn sso ssp ssr sss