lbses blses lsbes slbes bsles sbles lbess bless lebss elbss belss eblss lsebs slebs lesbs elsbs selbs eslbs bsels sbels besls ebsls sebls esbls lbsse blsse lsbse slbse bslse sblse lbsse blsse lsbse slbse bslse sblse lssbe slsbe lssbe slsbe sslbe sslbe bssle sbsle bssle sbsle ssble ssble lbess bless lebss elbss belss eblss lbses blses lsbes slbes bsles sbles lesbs elsbs lsebs slebs eslbs selbs besls ebsls bsels sbels esbls sebls lsesb slesb lessb elssb selsb eslsb lsseb slseb lsseb slseb ssleb ssleb lessb elssb lsesb slesb eslsb selsb seslb esslb sselb sselb esslb seslb bsesl sbesl bessl ebssl sebsl esbsl bssel sbsel bssel sbsel ssbel ssbel bessl ebssl bsesl sbesl esbsl sebsl sesbl essbl ssebl ssebl essbl sesbl
Note: these 'words' (valid or invalid) are all the permutations of the word lbses. These words are obtained by scrambling the letters in lbses.