ddd dde ddm ddp ddt ddx de- ded dee dem dep det dex dmd dme dmm dmp dmt dmx dpd dpe dpm dpp dpt dtd dte dtm dtp dtt dtx dxd dxp dxt dxx ed- edd ede edm edp edt edx eed eee eem eep eet eex em- emd eme emm emp emt emx ep- epd epe epm epp ept epx etd ete etm etp ett etx ex- exd exe exp ext exx mdd mde mdm mdp mdt mdx med mee mem mep met mex mmd mme mmm mmp mmt mmx mpd mpe mpm mpp mpt mpx mtd mte mtm mtp mtt mtx mxd mxp p-p pdd pde pdm pdp pdt pdx ped pee pem pep pet pex pmd pme pmm pmp pmt pmx ppd ppe ppm ppp ppt ppx pt- ptd pte ptm ptp ptt ptx pxe pxm pxt t-x tdd tde tdm tdp tdt tdx te- ted tee tem tep tet tex tmd tme tmm tmp tmt tmx tpd tpe tpm tpp tpt tpx ttd tte ttm ttp ttt ttx txe txt xde xdm xdt xed xee xem xep xet xex xmd xmm xmp xmt xmx xpd xpe xpm xpp xpt xtm xtp xtx xxp xxx