flobs lfobs folbs oflbs lofbs olfbs flbos lfbos fblos bflos lbfos blfos fobls ofbls fbols bfols obfls bofls lobfs olbfs lbofs blofs oblfs bolfs flosb lfosb folsb oflsb lofsb olfsb flsob lfsob fslob sflob lsfob slfob foslb ofslb fsolb sfolb osflb soflb losfb olsfb lsofb slofb oslfb solfb flbso lfbso fblso bflso lbfso blfso flsbo lfsbo fslbo sflbo lsfbo slfbo fbslo bfslo fsblo sfblo bsflo sbflo lbsfo blsfo lsbfo slbfo bslfo sblfo fobsl ofbsl fbosl bfosl obfsl bofsl fosbl ofsbl fsobl sfobl osfbl sofbl fbsol bfsol fsbol sfbol bsfol sbfol obsfl bosfl osbfl sobfl bsofl sbofl lobsf olbsf lbosf blosf oblsf bolsf losbf olsbf lsobf slobf oslbf solbf lbsof blsof lsbof slbof bslof sblof obslf boslf osblf soblf bsolf sbolf
Note: these 'words' (valid or invalid) are all the permutations of the word flobs. These words are obtained by scrambling the letters in flobs.