cawks acwks cwaks wcaks awcks wacks cakws ackws ckaws kcaws akcws kacws cwkas wckas ckwas kcwas wkcas kwcas awkcs wakcs akwcs kawcs wkacs kwacs cawsk acwsk cwask wcask awcsk wacsk caswk acswk csawk scawk ascwk sacwk cwsak wcsak cswak scwak wscak swcak awsck wasck aswck sawck wsack swack caksw acksw ckasw kcasw akcsw kacsw caskw acskw csakw scakw asckw sackw cksaw kcsaw cskaw sckaw kscaw skcaw akscw kascw askcw sakcw ksacw skacw cwksa wcksa ckwsa kcwsa wkcsa kwcsa cwska wcska cswka scwka wscka swcka ckswa kcswa cskwa sckwa kscwa skcwa wksca kwsca wskca swkca kswca skwca awksc waksc akwsc kawsc wkasc kwasc awskc waskc aswkc sawkc wsakc swakc akswc kaswc askwc sakwc ksawc skawc wksac kwsac wskac swkac kswac skwac
Note: these 'words' (valid or invalid) are all the permutations of the word cawks. These words are obtained by scrambling the letters in cawks.