sails asils sials isals aisls iasls salis aslis slais lsais alsis lasis silas islas slias lsias ilsas lisas ailss ialss aliss laiss ilass liass saisl asisl siasl isasl aissl iassl sasil assil ssail ssail assil sasil sisal issal ssial ssial issal sisal aissl iassl asisl saisl isasl siasl salsi aslsi slasi lsasi alssi lassi sasli assli ssali ssali assli sasli slsai lssai sslai sslai lssai slsai alssi lassi aslsi salsi lsasi slasi silsa islsa slisa lsisa ilssa lissa sisla issla ssila ssila issla sisla slsia lssia sslia sslia lssia slsia ilssa lissa islsa silsa lsisa slisa ailss ialss aliss laiss ilass liass aisls iasls asils sails isals sials alsis lasis aslis salis lsais slais ilsas lisas islas silas lsias slias
Note: these 'words' (valid or invalid) are all the permutations of the word sails. These words are obtained by scrambling the letters in sails.