ddd dde ddi ddm ddp dds ddt ddx de- ded dee dei dem dep des det dex di- did die dii dim dip dis dit dix dmd dme dmi dmm dmp dms dmt dmx dpd dpe dpi dpm dpp dps dpt dsd dse dsi dsm dsp dss dst dsx dtd dte dti dtm dtp dts dtt dtx dxd dxi dxp dxs dxt dxx ed- edd ede edi edm edp eds edt edx eed eee eem eep ees eet eex eid eie eii eim eip eis eit eix em- emd eme emi emm emp ems emt emx ep- epd epe epi epm epp eps ept epx es- esd ese esi esm esp ess est esx etd ete eti etm etp ets ett etx ex- exd exe exi exp exs ext exx i-d idd ide idi idm idp ids idt idx ie- ied iee iei iem iep ies iet iex iid iie iii iim iip iis iit iix im- imd ime imi imm imp ims imt imx ipd ipe ipi ipm ipp ips ipt ipx is- isd ise isi ism isp iss ist itd ite iti itm itp its itt itx ixe ixi mdd mde mdi mdm mdp mds mdt mdx med mee mei mem mep mes met mex mi- mid mie mii mim mip mis mit mix mmd mme mmi mmm mmp mms mmt mmx mpd mpe mpi mpm mpp mps mpt mpx msd mse msi msm msp mss mst msx mtd mte mti mtm mtp mts mtt mtx mxd mxi mxp mxs p-p pdd pde pdi pdm pdp pds pdt pdx ped pee pei pem pep pes pet pex pid pie pii pim pip pis pit pix pmd pme pmi pmm pmp pms pmt pmx ppd ppe ppi ppm ppp pps ppt ppx ps- psd pse psi psm psp pss pst psx pt- ptd pte pti ptm ptp pts ptt ptx pxe pxm pxs pxt sdd sde sdi sdm sdp sds sdt se- sed see sei sem sep ses set sex sid sie sii sim sip sis sit six smd sme smi smm smp sms smt smx spd spe spi spm spp sps spt spx ss- ssd sse ssi ssm ssp sss sst ssx std ste sti stm stp sts stt stx sxi sxm sxs sxt t-x tdd tde tdi tdm tdp tds tdt tdx te- ted tee tei tem tep tes tet tex tid tie tii tim tip tis tit tix tmd tme tmi tmm tmp tms tmt tmx tpd tpe tpi tpm tpp tps tpt tpx tsd tse tsi tsm tsp tss tst tsx ttd tte tti ttm ttp tts ttt ttx txe txi txs txt xde xdi xdm xds xdt xed xee xem xep xes xet xex xie xii xis xit xix xmd xmi xmm xmp xms xmt xmx xpd xpe xpm xpp xps xpt xsi xsm xsp xss xst xti xtm xtp xts xtx xxi xxp xxx