-er ddd dde ddg ddi ddl ddr dds ddt de- ded dee deg dei del der des det dgd dge dgg dgi dgl dgr dgs dgt di- did die dig dii dil dir dis dit dl- dld dle dlg dli dll dlr dls dlt drd dre drg dri drl drr drs drt dsd dse dsg dsi dsl dsr dss dst dtd dte dtg dti dtl dtr dts dtt ed- edd ede edg edi edl edr eds edt eed eee eeg eel eer ees eet egd ege egg egi egl egr egs egt eid eie eig eii eil eir eis eit eld ele elg eli ell elr els elt erd ere erg eri erl err ers ert es- esd ese esg esi esl esr ess est etd ete etg eti etl etr ets ett g-d gdd gde gdi gdl gdr gds gdt ge- ged gee geg gei gel ger ges get ggd ggg ggi ggr ggs ggt gid gie gig gii gil gir gis git gld gle glg gli gll glr gls glt grd gre grg gri grl grr grs grt gsd gse gsg gsi gsl gsr gss gst gtd gte gtg gti gtl gtr gts gtt i-d idd ide idg idi idl idr ids idt ie- ied iee ieg iei iel ier ies iet igd ige igg igi igl igr igs igt iid iie iii iil iir iis iit il- ild ile ilg ili ill ilr ils ilt ir- ird ire irg iri irl irr irs irt is- isd ise isg isi isl isr iss ist itd ite itg iti itl its itt ldd lde ldg ldi ldl ldr lds ldt led lee leg lei lel ler les let lgd lge lgg lgi lgl lgr lgs lgt lid lie lig lii lil lir lis lit lld lle llg lli lll llr lls llt lrd lrg lri lrr lrs lrt lsd lse lsg lsi lsl lsr lss lst ltd lte ltg lti ltl ltr lts ltt rdd rde rdg rdi rdl rdr rds rdt re- red ree reg rei rel rer res ret rgd rge rgg rgi rgr rgs rgt rid rie rig rii ril rir ris rit rld rle rlg rli rll rlr rls rlt rrd rrg rri rrl rrr rrs rrt rsd rse rsg rsi rsl rsr rss rst rtd rte rtg rti rtl rtr rts rtt sdd sde sdg sdi sdl sdr sds sdt se- sed see seg sei sel ser ses set sgd sge sgg sgi sgl sgr sgs sgt sid sie sig sii sil sir sis sit sld sle slg sli sll slr sls slt sr- srd sre srg sri srl srr srs srt ss- ssd sse ssg ssi ssl ssr sss sst std ste stg sti stl str sts stt tdd tde tdg tdi tdl tdr tds tdt te- ted tee teg tei tel ter tes tet tge tgg tgi tgl tgr tgs tgt tid tie tig tii til tir tis tit tld tle tlg tli tll tlr tls tlt trd tre trg tri trl trr trs trt tsd tse tsg tsi tsl tsr tss tst ttd tte ttg tti ttl ttr tts ttt