-er ddd dde ddg ddi ddm ddr dds ddt de- ded dee deg dei dem der des det dgd dge dgg dgi dgm dgr dgs dgt di- did die dig dii dim dir dis dit dmd dme dmg dmi dmm dmr dms dmt drd dre drg dri drm drr drs drt dsd dse dsg dsi dsm dsr dss dst dtd dte dtg dti dtm dtr dts dtt ed- edd ede edg edi edm edr eds edt eed eee eeg eem eer ees eet egd ege egg egi egm egr egs egt eid eie eig eii eim eir eis eit em- emd eme emg emi emm emr ems emt erd ere erg eri erm err ers ert es- esd ese esg esi esm esr ess est etd ete etg eti etm etr ets ett g-d gdd gde gdi gdm gdr gds gdt ge- ged gee geg gei gem ger ges get ggd ggg ggi ggm ggr ggs ggt gid gie gig gii gim gir gis git gmd gme gmg gmi gmm gmr gms gmt grd gre grg gri grm grr grs grt gsd gse gsg gsi gsm gsr gss gst gtd gte gtg gti gtm gtr gts gtt i-d idd ide idg idi idm idr ids idt ie- ied iee ieg iei iem ier ies iet igd ige igg igi igm igr igs igt iid iie iii iim iir iis iit im- imd ime img imi imm ims imt ir- ird ire irg iri irm irr irs irt is- isd ise isg isi ism isr iss ist itd ite itg iti itm its itt m-r mdd mde mdg mdi mdm mdr mds mdt med mee meg mei mem mer mes met mgd mge mgi mgm mgr mgs mgt mi- mid mie mig mii mim mir mis mit mmd mme mmg mmi mmm mmr mms mmt mrd mre mrg mri mrm mrr mrs mrt msd mse msg msi msm msr mss mst mtd mte mtg mti mtm mtr mts mtt rdd rde rdg rdi rdm rdr rds rdt re- red ree reg rei rem rer res ret rgd rge rgg rgi rgr rgs rgt rid rie rig rii rim rir ris rit rmd rme rmg rmi rmm rmr rms rmt rrd rrg rri rrm rrr rrs rrt rsd rse rsg rsi rsm rsr rss rst rtd rte rtg rti rtm rtr rts rtt sdd sde sdg sdi sdm sdr sds sdt se- sed see seg sei sem ser ses set sgd sge sgg sgi sgm sgr sgs sgt sid sie sig sii sim sir sis sit smd sme smg smi smm smr sms smt sr- srd sre srg sri srm srr srs srt ss- ssd sse ssg ssi ssm ssr sss sst std ste stg sti stm str sts stt tdd tde tdg tdi tdm tdr tds tdt te- ted tee teg tei tem ter tes tet tge tgg tgi tgm tgr tgs tgt tid tie tig tii tim tir tis tit tmd tme tmg tmi tmm tmr tms tmt trd tre trg tri trm trr trs trt tsd tse tsg tsi tsm tsr tss tst ttd tte ttg tti ttm ttr tts ttt