-er ddd dde ddi ddm ddo ddr dds ddt de- ded dee dei dem deo der des det di- did die dii dim dio dir dis dit dmd dme dmi dmm dmo dmr dms dmt dod doe doi dom doo dor dos dot drd dre dri drm dro drr drs drt dsd dse dsi dsm dso dsr dss dst dtd dte dti dtm dto dtr dts dtt ed- edd ede edi edm edo edr eds edt eed eee eem eeo eer ees eet eid eie eii eim eio eir eis eit em- emd eme emi emm emo emr ems emt eo- eod eoe eoi eom eoo eor eos eot erd ere eri erm ero err ers ert es- esd ese esi esm eso esr ess est etd ete eti etm eto etr ets ett i-d idd ide idi idm ido idr ids idt ie- ied iee iei iem ier ies iet iid iie iii iim iio iir iis iit im- imd ime imi imm imo ims imt io- iod ioe ioi iom ioo ior ios iot ir- ird ire iri irm iro irr irs irt is- isd ise isi ism iso isr iss ist itd ite iti itm ito its itt m-o m-r mdd mde mdi mdm mdo mdr mds mdt med mee mei mem meo mer mes met mi- mid mie mii mim mio mir mis mit mmd mme mmi mmm mmo mmr mms mmt mod moe moi mom moo mor mos mot mrd mre mri mrm mro mrr mrs mrt msd mse msi msm mso msr mss mst mtd mte mti mtm mto mtr mts mtt o-i odd ode odi odm odo odr ods odt oed oee oei oem oeo oer oes oet oid oie oii oim oio oir ois oit om- omd ome omi omm omo omr oms omt oo- ood ooi oom ooo oor oos oot or- ord ore ori orm oro orr ors ort os- osd ose osi osm oso osr oss ost ot- otd ote oti otm oto otr ots ott rdd rde rdi rdm rdo rdr rds rdt re- red ree rei rem reo rer res ret rid rie rii rim rio rir ris rit rmd rme rmi rmm rmo rmr rms rmt rod roe roi rom roo ror ros rot rrd rri rrm rrr rrs rrt rsd rse rsi rsm rso rsr rss rst rtd rte rti rtm rto rtr rts rtt sdd sde sdi sdm sdo sdr sds sdt se- sed see sei sem seo ser ses set sid sie sii sim sio sir sis sit smd sme smi smm smo smr sms smt sod soe soi som soo sor sos sot sr- srd sre sri srm sro srr srs srt ss- ssd sse ssi ssm sso ssr sss sst std ste sti stm sto str sts stt tdd tde tdi tdm tdo tdr tds tdt te- ted tee tei tem teo ter tes tet tid tie tii tim tio tir tis tit tmd tme tmi tmm tmo tmr tms tmt to- tod toe toi tom too tor tos tot trd tre tri trm tro trr trs trt tsd tse tsi tsm tso tsr tss tst ttd tte tti ttm tto ttr tts ttt