blebs lbebs belbs eblbs lebbs elbbs blbes lbbes bbles bbles lbbes blbes bebls ebbls bbels bbels ebbls bebls lebbs elbbs lbebs blebs eblbs belbs blesb lbesb belsb eblsb lebsb elbsb blseb lbseb bsleb sbleb lsbeb slbeb beslb ebslb bselb sbelb esblb seblb lesbb elsbb lsebb slebb eslbb selbb blbse lbbse bblse bblse lbbse blbse blsbe lbsbe bslbe sblbe lsbbe slbbe bbsle bbsle bsble sbble bsble sbble lbsbe blsbe lsbbe slbbe bslbe sblbe bebsl ebbsl bbesl bbesl ebbsl bebsl besbl ebsbl bsebl sbebl esbbl sebbl bbsel bbsel bsbel sbbel bsbel sbbel ebsbl besbl esbbl sebbl bsebl sbebl lebsb elbsb lbesb blesb eblsb belsb lesbb elsbb lsebb slebb eslbb selbb lbseb blseb lsbeb slbeb bsleb sbleb ebslb beslb esblb seblb bselb sbelb
Note: these 'words' (valid or invalid) are all the permutations of the word blebs. These words are obtained by scrambling the letters in blebs.