-er -ol ddd dde ddi ddl ddm ddo ddr dds ddt de- ded dee dei del dem deo der des det di- did die dii dil dim dio dir dis dit dl- dld dle dli dll dlm dlo dlr dls dlt dmd dme dmi dml dmm dmo dmr dms dmt dod doe doi dol dom doo dor dos dot drd dre dri drl drm dro drr drs drt dsd dse dsi dsl dsm dso dsr dss dst dtd dte dti dtl dtm dto dtr dts dtt ed- edd ede edi edl edm edo edr eds edt eed eee eel eem eeo eer ees eet eid eie eii eil eim eio eir eis eit eld ele eli ell elm elo elr els elt em- emd eme emi eml emm emo emr ems emt eo- eod eoe eoi eol eom eoo eor eos eot erd ere eri erl erm ero err ers ert es- esd ese esi esl esm eso esr ess est etd ete eti etl etm eto etr ets ett i-d idd ide idi idl idm ido idr ids idt ie- ied iee iei iel iem ier ies iet iid iie iii iil iim iio iir iis iit il- ild ile ili ill ilm ilo ilr ils ilt im- imd ime imi iml imm imo ims imt io- iod ioe ioi iol iom ioo ior ios iot ir- ird ire iri irl irm iro irr irs irt is- isd ise isi isl ism iso isr iss ist itd ite iti itl itm ito its itt ldd lde ldi ldl ldm ldo ldr lds ldt led lee lei lel lem leo ler les let lid lie lii lil lim lio lir lis lit lld lle lli lll llm llo llr lls llt lmd lme lmi lml lmm lmo lmr lms lmt lod loe loi lol lom loo lor los lot lrd lri lrm lro lrr lrs lrt lsd lse lsi lsl lsm lso lsr lss lst ltd lte lti ltl ltm lto ltr lts ltt m-o m-r mdd mde mdi mdl mdm mdo mdr mds mdt med mee mei mel mem meo mer mes met mi- mid mie mii mil mim mio mir mis mit mld mle mli mll mlm mlo mlr mls mlt mmd mme mmi mml mmm mmo mmr mms mmt mod moe moi mol mom moo mor mos mot mrd mre mri mrl mrm mro mrr mrs mrt msd mse msi msl msm mso msr mss mst mtd mte mti mtl mtm mto mtr mts mtt o-i odd ode odi odl odm odo odr ods odt oed oee oei oel oem oeo oer oes oet oid oie oii oil oim oio oir ois oit old ole oli oll olm olo ols olt om- omd ome omi oml omm omo omr oms omt oo- ood ooi ool oom ooo oor oos oot or- ord ore ori orl orm oro orr ors ort os- osd ose osi osl osm oso osr oss ost ot- otd ote oti otl otm oto otr ots ott rdd rde rdi rdl rdm rdo rdr rds rdt re- red ree rei rel rem reo rer res ret rid rie rii ril rim rio rir ris rit rld rle rli rll rlm rlo rlr rls rlt rmd rme rmi rml rmm rmo rmr rms rmt rod roe roi rol rom roo ror ros rot rrd rri rrl rrm rrr rrs rrt rsd rse rsi rsl rsm rso rsr rss rst rtd rte rti rtl rtm rto rtr rts rtt sdd sde sdi sdl sdm sdo sdr sds sdt se- sed see sei sel sem seo ser ses set sid sie sii sil sim sio sir sis sit sld sle sli sll slm slo slr sls slt smd sme smi sml smm smo smr sms smt sod soe soi sol som soo sor sos sot sr- srd sre sri srl srm sro srr srs srt ss- ssd sse ssi ssl ssm sso ssr sss sst std ste sti stl stm sto str sts stt tdd tde tdi tdl tdm tdo tdr tds tdt te- ted tee tei tel tem teo ter tes tet tid tie tii til tim tio tir tis tit tld tle tli tll tlm tlo tlr tls tlt tmd tme tmi tml tmm tmo tmr tms tmt to- tod toe toi tol tom too tor tos tot trd tre tri trl trm tro trr trs trt tsd tse tsi tsl tsm tso tsr tss tst ttd tte tti ttl ttm tto ttr tts ttt