tasks atsks tsaks staks astks satks takss atkss tkass ktass aktss katss tskas stkas tksas ktsas sktas kstas askts sakts aksts kasts skats ksats tassk atssk tsask stask astsk satsk tassk atssk tsask stask astsk satsk tssak stsak tssak stsak sstak sstak asstk sastk asstk sastk ssatk ssatk takss atkss tkass ktass aktss katss tasks atsks tsaks staks astks satks tksas ktsas tskas stkas kstas sktas aksts kasts askts sakts ksats skats tsksa stksa tkssa ktssa sktsa kstsa tsska stska tsska stska sstka sstka tkssa ktssa tsksa stksa kstsa sktsa sksta kssta sskta sskta kssta sksta askst sakst aksst kasst skast ksast asskt saskt asskt saskt ssakt ssakt aksst kasst askst sakst ksast skast sksat kssat sskat sskat kssat sksat
Note: these 'words' (valid or invalid) are all the permutations of the word tasks. These words are obtained by scrambling the letters in tasks.