blart lbart balrt ablrt labrt albrt blrat lbrat brlat rblat lrbat rlbat barlt abrlt bralt rbalt arblt rablt larbt alrbt lrabt rlabt arlbt ralbt blatr lbatr baltr abltr labtr albtr bltar lbtar btlar tblar ltbar tlbar batlr abtlr btalr tbalr atblr tablr latbr altbr ltabr tlabr atlbr talbr blrta lbrta brlta rblta lrbta rlbta bltra lbtra btlra tblra ltbra tlbra brtla rbtla btrla tbrla rtbla trbla lrtba rltba ltrba tlrba rtlba trlba bartl abrtl bratl rbatl arbtl rabtl batrl abtrl btarl tbarl atbrl tabrl brtal rbtal btral tbral rtbal trbal artbl ratbl atrbl tarbl rtabl trabl lartb alrtb lratb rlatb arltb raltb latrb altrb ltarb tlarb atlrb talrb lrtab rltab ltrab tlrab rtlab trlab artlb ratlb atrlb tarlb rtalb tralb
Note: these 'words' (valid or invalid) are all the permutations of the word blart. These words are obtained by scrambling the letters in blart.