skols ksols sokls oskls kosls oksls sklos kslos slkos lskos klsos lksos solks oslks sloks lsoks olsks losks kolss oklss kloss lkoss olkss lokss skosl ksosl soksl osksl kossl okssl sksol kssol sskol sskol kssol sksol soskl osskl ssokl ssokl osskl soskl kossl okssl ksosl skosl osksl soksl sklso kslso slkso lskso klsso lksso skslo ksslo ssklo ssklo ksslo skslo slsko lssko sslko sslko lssko slsko klsso lksso kslso sklso lskso slkso solsk oslsk slosk lsosk olssk lossk soslk osslk ssolk ssolk osslk soslk slsok lssok sslok sslok lssok slsok olssk lossk oslsk solsk lsosk slosk kolss oklss kloss lkoss olkss lokss kosls oksls ksols skols oskls sokls klsos lksos kslos sklos lskos slkos olsks losks oslks solks lsoks sloks
Note: these 'words' (valid or invalid) are all the permutations of the word skols. These words are obtained by scrambling the letters in skols.