ecads ceads eacds aecds caeds aceds ecdas cedas edcas decas cdeas dceas eadcs aedcs edacs deacs adecs daecs cades acdes cdaes dcaes adces daces ecasd ceasd eacsd aecsd caesd acesd ecsad cesad escad secad csead scead eascd aescd esacd seacd asecd saecd cased acsed csaed scaed asced saced ecdsa cedsa edcsa decsa cdesa dcesa ecsda cesda escda secda cseda sceda edsca desca esdca sedca dseca sdeca cdsea dcsea csdea scdea dscea sdcea eadsc aedsc edasc deasc adesc daesc easdc aesdc esadc seadc asedc saedc edsac desac esdac sedac dseac sdeac adsec dasec asdec sadec dsaec sdaec cadse acdse cdase dcase adcse dacse casde acsde csade scade ascde sacde cdsae dcsae csdae scdae dscae sdcae adsce dasce asdce sadce dsace sdace
Note: these 'words' (valid or invalid) are all the permutations of the word ecads. These words are obtained by scrambling the letters in ecads.