-er ddd dde ddl ddm ddr dds ddt ddu de- ded dee del dem der des det deu dl- dld dle dll dlm dlr dls dlt dlu dmd dme dml dmm dmr dms dmt dmu drd dre drl drm drr drs drt dru dsd dse dsl dsm dsr dss dst dsu dtd dte dtl dtm dtr dts dtt dtu dud due dul dum dur dus dut ed- edd ede edl edm edr eds edt edu eed eee eel eem eer ees eet eld ele ell elm elr els elt elu em- emd eme eml emm emr ems emt emu erd ere erl erm err ers ert eru es- esd ese esl esm esr ess est esu etd ete etl etm etr ets ett etu eu- eud eue eul eur eus eut ldd lde ldl ldm ldr lds ldt ldu led lee lel lem ler les let leu lld lle lll llm llr lls llt llu lmd lme lml lmm lmr lms lmt lmu lrd lrm lrr lrs lrt lru lsd lse lsl lsm lsr lss lst lsu ltd lte ltl ltm ltr lts ltt ltu lud lue lul lum lur lus lut luu m-r mdd mde mdl mdm mdr mds mdt mdu med mee mel mem mer mes met meu mld mle mll mlm mlr mls mlt mlu mmd mme mml mmm mmr mms mmt mmu mrd mre mrl mrm mrr mrs mrt mru msd mse msl msm msr mss mst msu mtd mte mtl mtm mtr mts mtt mtu mud mue mul mum mur mus mut muu rdd rde rdl rdm rdr rds rdt rdu re- red ree rel rem rer res ret reu rld rle rll rlm rlr rls rlt rlu rmd rme rml rmm rmr rms rmt rrd rrl rrm rrr rrs rrt rru rsd rse rsl rsm rsr rss rst rsu rtd rte rtl rtm rtr rts rtt rtu rud rue rum rur rus rut ruu sdd sde sdl sdm sdr sds sdt sdu se- sed see sel sem ser ses set seu sld sle sll slm slr sls slt slu smd sme sml smm smr sms smt smu sr- srd sre srl srm srr srs srt ss- ssd sse ssl ssm ssr sss sst ssu std ste stl stm str sts stt stu sud sue sul sum sur sus sut suu tdd tde tdl tdm tdr tds tdt tdu te- ted tee tel tem ter tes tet teu tld tle tll tlm tlr tls tlt tlu tmd tme tml tmm tmr tms tmt tmu trd tre trl trm trr trs trt tru tsd tse tsl tsm tsr tss tst tsu ttd tte ttl ttm ttr tts ttt ttu tud tue tul tum tur tus tut tuu udd ude udl udm udr uds udt udu ued uee uel uem uer ues uet uld ule ull ulm ulr uls ult ulu um- umd ume uml umm umr ums umt umu ur- urd ure url urm urr urs urt uru usd use usl usm usr uss ust usu utd ute utl utm utr uts utt utu uue uum uur uus uut uuu