-er ddd dde ddg ddi ddl ddp ddr dds de- ded dee deg dei del dep der des dgd dge dgg dgi dgl dgp dgr dgs di- did die dig dii dil dip dir dis dl- dld dle dlg dli dll dlp dlr dls dpd dpe dpg dpi dpl dpp dpr dps drd dre drg dri drl drp drr drs dsd dse dsg dsi dsl dsp dsr dss ed- edd ede edg edi edl edp edr eds eed eee eeg eel eep eer ees egd ege egg egi egl egp egr egs eid eie eig eii eil eip eir eis eld ele elg eli ell elp elr els ep- epd epe epg epi epl epp epr eps erd ere erg eri erl erp err ers es- esd ese esg esi esl esp esr ess g-d g-p gdd gde gdi gdl gdp gdr gds ge- ged gee geg gei gel gep ger ges ggd ggg ggi ggp ggr ggs gid gie gig gii gil gip gir gis gld gle glg gli gll glp glr gls gpd gpe gpg gpi gpl gpp gpr gps grd gre grg gri grl grp grr grs gsd gse gsg gsi gsl gsp gsr gss i-d idd ide idg idi idl idp idr ids ie- ied iee ieg iei iel iep ier ies igd ige igg igi igl igp igr igs iid iie iii iil iip iir iis il- ild ile ilg ili ill ilp ilr ils ipd ipe ipg ipi ipl ipp ipr ips ir- ird ire irg iri irl irp irr irs is- isd ise isg isi isl isp isr iss l-p ldd lde ldg ldi ldl ldp ldr lds led lee leg lei lel lep ler les lgd lge lgg lgi lgl lgp lgr lgs lid lie lig lii lil lip lir lis lld lle llg lli lll llp llr lls lpd lpe lpg lpi lpl lpp lpr lps lrd lrg lri lrp lrr lrs lsd lse lsg lsi lsl lsp lsr lss p-p pdd pde pdg pdi pdl pdp pdr pds ped pee peg pei pel pep per pes pgd pge pgg pgi pgl pgp pgr pgs pid pie pig pii pil pip pir pis pld ple plg pli pll plp plr pls ppd ppe ppg ppi ppl ppp ppr pps prd pre prg pri prl prp prr prs ps- psd pse psg psi psl psp psr pss rdd rde rdg rdi rdl rdp rdr rds re- red ree reg rei rel rep rer res rgd rge rgg rgi rgp rgr rgs rid rie rig rii ril rip rir ris rld rle rlg rli rll rlp rlr rls rpd rpe rpg rpi rpl rpp rpr rps rrd rrg rri rrl rrp rrr rrs rsd rse rsg rsi rsl rsp rsr rss sdd sde sdg sdi sdl sdp sdr sds se- sed see seg sei sel sep ser ses sgd sge sgg sgi sgl sgp sgr sgs sid sie sig sii sil sip sir sis sld sle slg sli sll slp slr sls spd spe spg spi spl spp spr sps sr- srd sre srg sri srl srp srr srs ss- ssd sse ssg ssi ssl ssp ssr sss