-er ddd dde ddi ddm ddr dds ddt ddu de- ded dee dei dem der des det deu di- did die dii dim dir dis dit diu dmd dme dmi dmm dmr dms dmt dmu drd dre dri drm drr drs drt dru dsd dse dsi dsm dsr dss dst dsu dtd dte dti dtm dtr dts dtt dtu dud due dui dum dur dus dut ed- edd ede edi edm edr eds edt edu eed eee eem eer ees eet eid eie eii eim eir eis eit eiu em- emd eme emi emm emr ems emt emu erd ere eri erm err ers ert eru es- esd ese esi esm esr ess est esu etd ete eti etm etr ets ett etu eu- eud eue eui eur eus eut i-d idd ide idi idm idr ids idt idu ie- ied iee iei iem ier ies iet iid iie iii iim iir iis iit iiu im- imd ime imi imm ims imt imu ir- ird ire iri irm irr irs irt iru is- isd ise isi ism isr iss ist isu itd ite iti itm its itt itu iu- iud iue iui ium iur ius iut m-r mdd mde mdi mdm mdr mds mdt mdu med mee mei mem mer mes met meu mi- mid mie mii mim mir mis mit miu mmd mme mmi mmm mmr mms mmt mmu mrd mre mri mrm mrr mrs mrt mru msd mse msi msm msr mss mst msu mtd mte mti mtm mtr mts mtt mtu mud mue mui mum mur mus mut muu rdd rde rdi rdm rdr rds rdt rdu re- red ree rei rem rer res ret reu rid rie rii rim rir ris rit rmd rme rmi rmm rmr rms rmt rrd rri rrm rrr rrs rrt rru rsd rse rsi rsm rsr rss rst rsu rtd rte rti rtm rtr rts rtt rtu rud rue rui rum rur rus rut ruu sdd sde sdi sdm sdr sds sdt sdu se- sed see sei sem ser ses set seu sid sie sii sim sir sis sit siu smd sme smi smm smr sms smt smu sr- srd sre sri srm srr srs srt ss- ssd sse ssi ssm ssr sss sst ssu std ste sti stm str sts stt stu sud sue sui sum sur sus sut suu tdd tde tdi tdm tdr tds tdt tdu te- ted tee tei tem ter tes tet teu tid tie tii tim tir tis tit tiu tmd tme tmi tmm tmr tms tmt tmu trd tre tri trm trr trs trt tru tsd tse tsi tsm tsr tss tst tsu ttd tte tti ttm ttr tts ttt ttu tud tue tui tum tur tus tut tuu udd ude udi udm udr uds udt udu ued uee uei uem uer ues uet uid uie uii uim uir uis uit uiu um- umd ume umi umm umr ums umt umu ur- urd ure uri urm urr urs urt uru usd use usi usm usr uss ust usu utd ute uti utm utr uts utt utu uue uum uur uus uut uuu