ddd dde ddm ddo ddp dds ddt de- ded dee dem deo dep des det dmd dme dmm dmo dmp dms dmt dod doe dom doo dop dos dot dpd dpe dpm dpo dpp dps dpt dsd dse dsm dso dsp dss dst dtd dte dtm dto dtp dts dtt ed- edd ede edm edo edp eds edt eed eee eem eeo eep ees eet em- emd eme emm emo emp ems emt eo- eod eoe eom eoo eop eos eot ep- epd epe epm epo epp eps ept es- esd ese esm eso esp ess est etd ete etm eto etp ets ett m-o mdd mde mdm mdo mdp mds mdt med mee mem meo mep mes met mmd mme mmm mmo mmp mms mmt mod moe mom moo mop mos mot mpd mpe mpm mpo mpp mps mpt msd mse msm mso msp mss mst mtd mte mtm mto mtp mts mtt odd ode odm odo odp ods odt oed oee oem oeo oep oes oet om- omd ome omm omo omp oms omt oo- ood oom ooo oop oos oot op- opd ope opm opo opp ops opt os- osd ose osm oso osp oss ost ot- otd ote otm oto otp ots ott p-p pdd pde pdm pdo pdp pds pdt ped pee pem peo pep pes pet pmd pme pmm pmo pmp pms pmt pod poe pom poo pop pos pot ppd ppe ppm ppo ppp pps ppt ps- psd pse psm pso psp pss pst pt- ptd pte ptm pto ptp pts ptt sdd sde sdm sdo sdp sds sdt se- sed see sem seo sep ses set smd sme smm smo smp sms smt sod soe som soo sop sos sot spd spe spm spo spp sps spt ss- ssd sse ssm sso ssp sss sst std ste stm sto stp sts stt tdd tde tdm tdo tdp tds tdt te- ted tee tem teo tep tes tet tmd tme tmm tmo tmp tms tmt to- tod toe tom too top tos tot tpd tpe tpm tpo tpp tps tpt tsd tse tsm tso tsp tss tst ttd tte ttm tto ttp tts ttt