-er ddd dde ddg ddo ddq ddr dds ddt ddu de- ded dee deg deo deq der des det deu dgd dge dgg dgr dgs dgt dgu dod doe dog doo doq dor dos dot dou dqe dqs drd dre drg dro drq drr drs drt dru dsd dse dsg dso dsq dsr dss dst dsu dtd dte dtg dto dtr dts dtt dtu dud due dug duo dur dus dut ed- edd ede edg edo edr eds edt edu eed eee eeg eeo eer ees eet egd ege egg ego egr egs egt egu eo- eod eoe eog eoo eoq eor eos eot eou eqe eqq eqs eqt equ erd ere erg ero erq err ers ert eru es- esd ese esg eso esq esr ess est esu etd ete etg eto etr ets ett etu eu- eud eue eug eur eus eut g-d gdd gde gdo gdr gds gdt gdu ge- ged gee geg geo ger ges get geu ggd ggg ggo ggr ggs ggt ggu god goe gog goo goq gor gos got gou gqs grd gre grg gro grq grr grs grt gru gsd gse gsg gso gsr gss gst gsu gtd gte gtg gto gtq gtr gts gtt gtu gu- gud gue gug guo gur gus gut guu odd ode odg odo odr ods odt odu oed oee oeg oeo oer oes oet ogd oge ogg ogo ogs ogt oo- ood oog ooo oor oos oot oqo or- ord ore org oro orr ors ort oru os- osd ose osg oso osq osr oss ost osu ot- otd ote otg oto otr ots ott otu ou- oud oue ouo our ous out qdr qds qdt qed qee qeo qet qoo qor qos qqq qqu qre qrg qrs qrt qru qsd qso qsr qst qtd qto qtq qtr qts qu- qud que quo qur qus qut rdd rde rdg rdo rdr rds rdt rdu re- red ree reg reo req rer res ret reu rgd rge rgg rgo rgr rgs rgt rod roe rog roo ror ros rot rou rqs rrd rrg rrq rrr rrs rrt rru rsd rse rsg rso rsq rsr rss rst rsu rtd rte rtg rto rtq rtr rts rtt rtu rud rue rug ruo rur rus rut ruu sdd sde sdg sdo sdq sdr sds sdt sdu se- sed see seg seo seq ser ses set seu sgd sge sgg sgo sgr sgs sgt sgu sod soe sog soo soq sor sos sot sou sqd sqq sqr sqs sr- srd sre srg sro srq srr srs srt ss- ssd sse ssg sso ssq ssr sss sst ssu std ste stg sto stq str sts stt stu sud sue sug suo suq sur sus sut suu tdd tde tdg tdo tdr tds tdt tdu te- ted tee teg teo teq ter tes tet teu tge tgg tgo tgr tgs tgt tgu to- tod toe tog too toq tor tos tot tou tqo trd tre trg tro trq trr trs trt tru tsd tse tsg tso tsq tsr tss tst tsu ttd tte ttg tto ttr tts ttt ttu tud tue tug tuo tur tus tut tuu udd ude udg udo udr uds udt udu ued uee ueg uer ues uet uge ugg ugo ugr ugs ugt ugu uod uoe uog uoo uor uos uot ur- urd ure urg uro urr urs urt uru usd use usg uso usr uss ust usu utd ute uto utr uts utt utu uue uug uur uus uut uuu