-er ddd dde ddf ddg ddo ddr dds ddt ddu de- ded dee def deg deo der des det deu dfd dfe dff dfg dfo dfr dfs dft dfu dgd dge dgf dgg dgr dgs dgt dgu dod doe dof dog doo dor dos dot dou drd dre drg dro drr drs drt dru dsd dse dsf dsg dso dsr dss dst dsu dtd dte dtf dtg dto dtr dts dtt dtu dud due duf dug duo dur dus dut ed- edd ede edf edg edo edr eds edt edu eed eee eef eeg eeo eer ees eet ef- efd efe eff efg efo efr efs eft egd ege egf egg ego egr egs egt egu eo- eod eoe eof eog eoo eor eos eot eou erd ere erf erg ero err ers ert eru es- esd ese esf esg eso esr ess est esu etd ete etf etg eto etr ets ett etu eu- eud eue euf eug eur eus eut fdd fde fdf fdg fdo fdr fds fdt fdu fed fee fef feg feo fer fes fet feu ffd ffe fff ffg ffo ffr ffs fft ffu fgd fge fgf fgg fgr fgs fgt foe fof fog foo for fos fot fou frd fre frf frg fro frr frs frt fru fsd fse fsf fsg fso fsr fss fst fsu ftd fte ftf ftg fto ftr fts ftt ftu fud fue fuf fug fuo fur fus fut fuu g-d gdd gde gdf gdo gdr gds gdt gdu ge- ged gee gef geg geo ger ges get geu gfd gfe gff gfo gfr gfs gft ggd ggg ggo ggr ggs ggt ggu god goe gof gog goo gor gos got gou grd gre grf grg gro grr grs grt gru gsd gse gsf gsg gso gsr gss gst gsu gtd gte gtf gtg gto gtr gts gtt gtu gu- gud gue guf gug guo gur gus gut guu odd ode odf odg odo odr ods odt odu oed oee oef oeg oeo oer oes oet of- ofd ofe off ofg ofo ofr ofs oft ofu ogd oge ogf ogg ogo ogs ogt oo- ood oof oog ooo oor oos oot or- ord ore orf org oro orr ors ort oru os- osd ose osf osg oso osr oss ost osu ot- otd ote otf otg oto otr ots ott otu ou- oud oue ouf ouo our ous out rdd rde rdf rdg rdo rdr rds rdt rdu re- red ree ref reg reo rer res ret reu rfd rfe rff rfg rfo rfr rfs rft rfu rgd rge rgf rgg rgo rgr rgs rgt rod roe rof rog roo ror ros rot rou rrd rrf rrg rrr rrs rrt rru rsd rse rsf rsg rso rsr rss rst rsu rtd rte rtf rtg rto rtr rts rtt rtu rud rue ruf rug ruo rur rus rut ruu sdd sde sdf sdg sdo sdr sds sdt sdu se- sed see sef seg seo ser ses set seu sfd sfe sff sfg sfo sfr sfs sft sfu sgd sge sgf sgg sgo sgr sgs sgt sgu sod soe sof sog soo sor sos sot sou sr- srd sre srf srg sro srr srs srt ss- ssd sse ssf ssg sso ssr sss sst ssu std ste stf stg sto str sts stt stu sud sue suf sug suo sur sus sut suu tdd tde tdf tdg tdo tdr tds tdt tdu te- ted tee tef teg teo ter tes tet teu tfd tfe tff tfg tfo tfr tfs tft tfu tge tgf tgg tgo tgr tgs tgt tgu to- tod toe tof tog too tor tos tot tou trd tre trf trg tro trr trs trt tru tsd tse tsf tsg tso tsr tss tst tsu ttd tte ttf ttg tto ttr tts ttt ttu tud tue tuf tug tuo tur tus tut tuu udd ude udf udg udo udr uds udt udu ued uee uef ueg uer ues uet ufd ufe uff ufg ufo ufr ufs uft ufu uge ugf ugg ugo ugr ugs ugt ugu uod uoe uog uoo uor uos uot ur- urd ure urf urg uro urr urs urt uru usd use usf usg uso usr uss ust usu utd ute utf uto utr uts utt utu uue uug uur uus uut uuu