nsakc snakc naskc anskc sankc asnkc nskac snkac nksac knsac sknac ksnac naksc anksc nkasc knasc aknsc kansc saknc asknc skanc ksanc aksnc kasnc nsack snack nasck ansck sanck asnck nscak sncak ncsak cnsak scnak csnak nacsk ancsk ncask cnask acnsk cansk sacnk ascnk scank csank acsnk casnk nskca snkca nksca knsca sknca ksnca nscka sncka ncska cnska scnka csnka nkcsa kncsa ncksa cnksa kcnsa cknsa skcna kscna sckna cskna kcsna cksna nakcs ankcs nkacs knacs akncs kancs nacks ancks ncaks cnaks acnks canks nkcas kncas nckas cnkas kcnas cknas akcns kacns ackns cakns kcans ckans sakcn askcn skacn ksacn akscn kascn sackn asckn scakn csakn acskn caskn skcan kscan sckan cskan kcsan cksan akcsn kacsn acksn caksn kcasn ckasn
Note: these 'words' (valid or invalid) are all the permutations of the word nsakc. These words are obtained by scrambling the letters in nsakc.