-er ddd dde ddg ddi ddn ddp ddr dds ddt de- ded dee deg dei den dep der des det dgd dge dgg dgi dgn dgp dgr dgs dgt di- did die dig dii din dip dir dis dit dnd dne dng dni dnn dnp dnr dns dnt dpd dpe dpg dpi dpn dpp dpr dps dpt drd dre drg dri drn drp drr drs drt dsd dse dsg dsi dsn dsp dsr dss dst dtd dte dtg dti dtn dtp dtr dts dtt ed- edd ede edg edi edn edp edr eds edt eed eee eeg een eep eer ees eet egd ege egg egi egn egp egr egs egt eid eie eig eii ein eip eir eis eit en- end ene eng eni enn enp enr ens ent ep- epd epe epg epi epn epp epr eps ept erd ere erg eri ern erp err ers ert es- esd ese esg esi esn esp esr ess est etd ete etg eti etn etp etr ets ett g-d g-p gdd gde gdi gdn gdp gdr gds gdt ge- ged gee geg gei gen gep ger ges get ggd ggg ggi ggn ggp ggr ggs ggt gid gie gig gii gin gip gir gis git gnd gne gni gnn gnp gnr gns gnt gpd gpe gpg gpi gpn gpp gpr gps gpt grd gre grg gri grn grp grr grs grt gsd gse gsg gsi gsn gsp gsr gss gst gtd gte gtg gti gtn gtp gtr gts gtt i-d idd ide idg idi idn idp idr ids idt ie- ied iee ieg iei ien iep ier ies iet igd ige igg igi ign igp igr igs igt iid iie iii iin iip iir iis iit in- ind ine ing ini inn inp inr ins int ipd ipe ipg ipi ipn ipp ipr ips ipt ir- ird ire irg iri irn irp irr irs irt is- isd ise isg isi isn isp isr iss ist itd ite itg iti itn itp its itt n-i ndd nde ndg ndi ndn ndp ndr nds ndt ne- ned nee neg nei nen nep ner nes net ngd nge ngg ngi ngn ngp ngs ngt nid nie nig nii nin nip nir nis nit nne nng nni nnn nnp nns nnt npd npe npg npi npn npp npr nps npt nrd nre nrg nri nrn nrp nrr nrs nrt nsd nse nsg nsi nsn nsp nsr nss nst ntd nte ntg nti ntn ntp ntr nts ntt p-p pdd pde pdg pdi pdn pdp pdr pds pdt ped pee peg pei pen pep per pes pet pgd pge pgg pgi pgn pgp pgr pgs pgt pid pie pig pii pin pip pir pis pit pn- pnd pne png pni pnn pnp pnr pns pnt ppd ppe ppg ppi ppn ppp ppr pps ppt prd pre prg pri prn prp prr prs prt ps- psd pse psg psi psn psp psr pss pst pt- ptd pte ptg pti ptn ptp ptr pts ptt rdd rde rdg rdi rdn rdp rdr rds rdt re- red ree reg rei ren rep rer res ret rgd rge rgg rgi rgn rgp rgr rgs rgt rid rie rig rii rin rip rir ris rit rnd rng rni rnn rnp rnr rns rnt rpd rpe rpg rpi rpn rpp rpr rps rpt rrd rrg rri rrn rrp rrr rrs rrt rsd rse rsg rsi rsn rsp rsr rss rst rtd rte rtg rti rtn rtp rtr rts rtt sdd sde sdg sdi sdn sdp sdr sds sdt se- sed see seg sei sen sep ser ses set sgd sge sgg sgi sgn sgp sgr sgs sgt sid sie sig sii sin sip sir sis sit snd sne sng sni snn snp snr sns snt spd spe spg spi spn spp spr sps spt sr- srd sre srg sri srn srp srr srs srt ss- ssd sse ssg ssi ssn ssp ssr sss sst std ste stg sti stn stp str sts stt tdd tde tdg tdi tdn tdp tdr tds tdt te- ted tee teg tei ten tep ter tes tet tge tgg tgi tgn tgp tgr tgs tgt tid tie tig tii tin tip tir tis tit tnd tne tng tni tnn tnp tnr tns tnt tpd tpe tpg tpi tpn tpp tpr tps tpt trd tre trg tri trn trp trr trs trt tsd tse tsg tsi tsn tsp tsr tss tst ttd tte ttg tti ttn ttp ttr tts ttt