ddd dde ddi ddm ddp dds ddt de- ded dee dei dem dep des det di- did die dii dim dip dis dit dmd dme dmi dmm dmp dms dmt dpd dpe dpi dpm dpp dps dpt dsd dse dsi dsm dsp dss dst dtd dte dti dtm dtp dts dtt ed- edd ede edi edm edp eds edt eed eee eem eep ees eet eid eie eii eim eip eis eit em- emd eme emi emm emp ems emt ep- epd epe epi epm epp eps ept es- esd ese esi esm esp ess est etd ete eti etm etp ets ett i-d idd ide idi idm idp ids idt ie- ied iee iei iem iep ies iet iid iie iii iim iip iis iit im- imd ime imi imm imp ims imt ipd ipe ipi ipm ipp ips ipt is- isd ise isi ism isp iss ist itd ite iti itm itp its itt mdd mde mdi mdm mdp mds mdt med mee mei mem mep mes met mi- mid mie mii mim mip mis mit mmd mme mmi mmm mmp mms mmt mpd mpe mpi mpm mpp mps mpt msd mse msi msm msp mss mst mtd mte mti mtm mtp mts mtt p-p pdd pde pdi pdm pdp pds pdt ped pee pei pem pep pes pet pid pie pii pim pip pis pit pmd pme pmi pmm pmp pms pmt ppd ppe ppi ppm ppp pps ppt ps- psd pse psi psm psp pss pst pt- ptd pte pti ptm ptp pts ptt sdd sde sdi sdm sdp sds sdt se- sed see sei sem sep ses set sid sie sii sim sip sis sit smd sme smi smm smp sms smt spd spe spi spm spp sps spt ss- ssd sse ssi ssm ssp sss sst std ste sti stm stp sts stt tdd tde tdi tdm tdp tds tdt te- ted tee tei tem tep tes tet tid tie tii tim tip tis tit tmd tme tmi tmm tmp tms tmt tpd tpe tpi tpm tpp tps tpt tsd tse tsi tsm tsp tss tst ttd tte tti ttm ttp tts ttt