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