eicsd iecsd ecisd ceisd icesd ciesd eiscd iescd esicd seicd isecd siecd ecsid cesid escid secid cseid sceid icsed cised isced siced csied scied eicds iecds ecids ceids iceds cieds eidcs iedcs edics deics idecs diecs ecdis cedis edcis decis cdeis dceis icdes cides idces dices cdies dcies eisdc iesdc esidc seidc isedc siedc eidsc iedsc edisc deisc idesc diesc esdic sedic edsic desic sdeic dseic isdec sidec idsec disec sdiec dsiec ecsdi cesdi escdi secdi csedi scedi ecdsi cedsi edcsi decsi cdesi dcesi esdci sedci edsci desci sdeci dseci csdei scdei cdsei dcsei sdcei dscei icsde cisde iscde sicde cside scide icdse cidse idcse dicse cdise dcise isdce sidce idsce disce sdice dsice csdie scdie cdsie dcsie sdcie dscie
Note: these 'words' (valid or invalid) are all the permutations of the word eicsd. These words are obtained by scrambling the letters in eicsd.