dfiex fdiex difex idfex fidex ifdex dfeix fdeix defix edfix fedix efdix diefx idefx deifx edifx iedfx eidfx fiedx ifedx feidx efidx iefdx eifdx dfixe fdixe difxe idfxe fidxe ifdxe dfxie fdxie dxfie xdfie fxdie xfdie dixfe idxfe dxife xdife ixdfe xidfe fixde ifxde fxide xfide ixfde xifde dfexi fdexi defxi edfxi fedxi efdxi dfxei fdxei dxfei xdfei fxdei xfdei dexfi edxfi dxefi xdefi exdfi xedfi fexdi efxdi fxedi xfedi exfdi xefdi diexf idexf deixf edixf iedxf eidxf dixef idxef dxief xdief ixdef xidef dexif edxif dxeif xdeif exdif xedif iexdf eixdf ixedf xiedf exidf xeidf fiexd ifexd feixd efixd iefxd eifxd fixed ifxed fxied xfied ixfed xifed fexid efxid fxeid xfeid exfid xefid iexfd eixfd ixefd xiefd exifd xeifd
Note: these 'words' (valid or invalid) are all the permutations of the word dfiex. These words are obtained by scrambling the letters in dfiex.