-er ddd dde ddi ddk ddl ddn ddp ddr dds de- ded dee dei dek del den dep der des di- did die dii dik dil din dip dir dis dke dki dkk dkl dkp dkr dks dl- dld dle dli dlk dll dlp dlr dls dnd dne dni dnk dnl dnn dnp dnr dns dpd dpe dpi dpk dpl dpn dpp dpr dps drd dre dri drk drl drn drp drr drs dsd dse dsi dsk dsl dsn dsp dsr dss ed- edd ede edi edk edl edn edp edr eds eed eee eek eel een eep eer ees eid eie eii eik eil ein eip eir eis ekd eke eki ekl ekp ekr eks eld ele eli elk ell eln elp elr els en- end ene eni enk enl enn enp enr ens ep- epd epe epi epl epn epp epr eps erd ere eri erk erl ern erp err ers es- esd ese esi esk esl esn esp esr ess i-d idd ide idi idk idl idn idp idr ids ie- ied iee iei iek iel ien iep ier ies iid iie iii iil iin iip iir iis ike iki ikk ikl ikr iks il- ild ile ili ilk ill iln ilp ilr ils in- ind ine ini ink inl inn inp inr ins ipd ipe ipi ipl ipn ipp ipr ips ir- ird ire iri irk irl irn irp irr irs is- isd ise isi isk isl isn isp isr iss kde kdk kdl kdp kdr kds ke- ked kee kei kek kel ken kep ker kes kid kie kii kik kil kin kip kir kis kke kki kkk kkl kkn kkp kkr kks kl- kld kli klr kls kn- knd kne kni knk knl knn knp knr kpd kpe kpi kpk kpl kpn kpp kpr kps krd kri krk krl krn krp krr krs ksd kse ksi ksk ksl ksn ksp ksr kss l-p ldd lde ldi ldk ldl ldn ldp ldr lds led lee lei lek lel len lep ler les lid lie lii lik lil lin lip lir lis lkl lkp lkr lks lld lle lli llk lll lln llp llr lls lnd lne lni lnk lnl lnn lnp lnr lns lpd lpe lpi lpk lpl lpn lpp lpr lps lrd lri lrk lrn lrp lrr lrs lsd lse lsi lsk lsl lsn lsp lsr lss n-i ndd nde ndi ndk ndl ndn ndp ndr nds ne- ned nee nei nek nel nen nep ner nes nid nie nii nik nil nin nip nir nis nke nki nkk nkn nkp nkr nks nld nle nli nlk nll nln nlp nlr nls nne nni nnk nnl nnn nnp nns npd npe npi npl npn npp npr nps nrd nre nri nrk nrl nrn nrp nrr nrs nsd nse nsi nsk nsl nsn nsp nsr nss p-p pdd pde pdi pdk pdl pdn pdp pdr pds ped pee pei pek pel pen pep per pes pid pie pii pik pil pin pip pir pis pkd pke pki pkl pkn pkp pkr pks pld ple pli plk pll pln plp plr pls pn- pnd pne pni pnk pnl pnn pnp pnr pns ppd ppe ppi ppk ppl ppn ppp ppr pps prd pre pri prk prl prn prp prr prs ps- psd pse psi psk psl psn psp psr pss rdd rde rdi rdl rdn rdp rdr rds re- red ree rei rek rel ren rep rer res rid rie rii rik ril rin rip rir ris rke rkk rkp rks rld rle rli rll rln rlp rlr rls rnd rni rnn rnp rnr rns rpd rpe rpi rpk rpl rpn rpp rpr rps rrd rri rrk rrl rrn rrp rrr rrs rsd rse rsi rsk rsl rsn rsp rsr rss sdd sde sdi sdk sdl sdn sdp sdr sds se- sed see sei sek sel sen sep ser ses sid sie sii sik sil sin sip sir sis sk- skd ske ski skk skl skp skr sks sld sle sli slk sll sln slp slr sls snd sne sni snk snl snn snp snr sns spd spe spi spk spl spn spp spr sps sr- srd sre sri srk srl srn srp srr srs ss- ssd sse ssi ssk ssl ssn ssp ssr sss