-er ddd dde ddi ddm ddn ddp ddr ddt ddx de- ded dee dei dem den dep der det dex di- did die dii dim din dip dir dit dix dmd dme dmi dmm dmn dmp dmr dmt dmx dnd dne dni dnm dnn dnp dnr dnt dpd dpe dpi dpm dpn dpp dpr dpt drd dre dri drm drn drp drr drt drx dtd dte dti dtm dtn dtp dtr dtt dtx dxd dxi dxn dxp dxr dxt dxx ed- edd ede edi edm edn edp edr edt edx eed eee eem een eep eer eet eex eid eie eii eim ein eip eir eit eix em- emd eme emi emm emn emp emr emt emx en- end ene eni enm enn enp enr ent ep- epd epe epi epm epn epp epr ept epx erd ere eri erm ern erp err ert etd ete eti etm etn etp etr ett etx ex- exd exe exi exp exr ext exx i-d idd ide idi idm idn idp idr idt idx ie- ied iee iei iem ien iep ier iet iex iid iie iii iim iin iip iir iit iix im- imd ime imi imm imn imp imt imx in- ind ine ini inm inn inp inr int inx ipd ipe ipi ipm ipn ipp ipr ipt ipx ir- ird ire iri irm irn irp irr irt irx itd ite iti itm itn itp itt itx ixe ixi ixn m-r mdd mde mdi mdm mdn mdp mdr mdt mdx med mee mei mem men mep mer met mex mi- mid mie mii mim min mip mir mit mix mmd mme mmi mmm mmn mmp mmr mmt mmx mne mni mnm mnn mnp mnr mnt mpd mpe mpi mpm mpn mpp mpr mpt mpx mrd mre mri mrm mrn mrp mrr mrt mrx mtd mte mti mtm mtn mtp mtr mtt mtx mxd mxi mxn mxp mxr n-i ndd nde ndi ndm ndn ndp ndr ndt ne- ned nee nei nem nen nep ner net nex nid nie nii nim nin nip nir nit nix nmd nme nmi nmm nmn nmp nmr nmt nne nni nnm nnn nnp nnt npd npe npi npm npn npp npr npt nrd nre nri nrm nrn nrp nrr nrt nrx ntd nte nti ntm ntn ntp ntr ntt ntx nxd nxt p-p pdd pde pdi pdm pdn pdp pdr pdt pdx ped pee pei pem pen pep per pet pex pid pie pii pim pin pip pir pit pix pmd pme pmi pmm pmn pmp pmr pmt pmx pn- pnd pne pni pnm pnn pnp pnr pnt pnx ppd ppe ppi ppm ppn ppp ppr ppt ppx prd pre pri prm prn prp prr prt prx pt- ptd pte pti ptm ptn ptp ptr ptt ptx pxe pxm pxr pxt rdd rde rdi rdm rdn rdp rdr rdt rdx re- red ree rei rem ren rep rer ret rex rid rie rii rim rin rip rir rit rix rmd rme rmi rmm rmn rmp rmr rmt rmx rnd rni rnm rnn rnp rnr rnt rpd rpe rpi rpm rpn rpp rpr rpt rpx rrd rri rrm rrn rrp rrr rrt rtd rte rti rtm rtn rtp rtr rtt rtx rxp rxr t-x tdd tde tdi tdm tdn tdp tdr tdt tdx te- ted tee tei tem ten tep ter tet tex tid tie tii tim tin tip tir tit tix tmd tme tmi tmm tmn tmp tmr tmt tmx tnd tne tni tnm tnn tnp tnr tnt tnx tpd tpe tpi tpm tpn tpp tpr tpt tpx trd tre tri trm trn trp trr trt trx ttd tte tti ttm ttn ttp ttr ttt ttx txe txi txn txt xde xdi xdm xdr xdt xed xee xem xen xep xer xet xex xie xii xin xit xix xmd xmi xmm xmp xmr xmt xmx xpd xpe xpm xpn xpp xpt xrd xrt xrx xti xtm xtp xtr xtx xxi xxp xxx