sculk csulk suclk usclk cuslk ucslk scluk csluk slcuk lscuk clsuk lcsuk sulck uslck sluck lsuck ulsck lusck culsk uclsk clusk lcusk ulcsk lucsk scukl csukl suckl usckl cuskl ucskl sckul cskul skcul kscul cksul kcsul sukcl uskcl skucl ksucl ukscl kuscl cuksl ucksl ckusl kcusl ukcsl kucsl sclku cslku slcku lscku clsku lcsku scklu csklu skclu ksclu ckslu kcslu slkcu lskcu sklcu kslcu lkscu klscu clksu lcksu cklsu kclsu lkcsu klcsu sulkc uslkc slukc lsukc ulskc luskc suklc usklc skulc ksulc ukslc kuslc slkuc lskuc skluc ksluc lksuc klsuc ulksc luksc uklsc kulsc lkusc klusc culks uclks cluks lcuks ulcks lucks cukls uckls ckuls kculs ukcls kucls clkus lckus cklus kclus lkcus klcus ulkcs lukcs uklcs kulcs lkucs klucs
Note: these 'words' (valid or invalid) are all the permutations of the word sculk. These words are obtained by scrambling the letters in sculk.