brule rbule burle ubrle ruble urble brlue rblue blrue lbrue rlbue lrbue bulre ublre blure lbure ulbre lubre rulbe urlbe rlube lrube ulrbe lurbe bruel rbuel burel ubrel rubel urbel breul rbeul berul ebrul rebul erbul buerl uberl beurl eburl uebrl eubrl ruebl urebl reubl erubl uerbl eurbl brleu rbleu blreu lbreu rlbeu lrbeu brelu rbelu berlu ebrlu reblu erblu bleru lberu belru eblru lebru elbru rlebu lrebu relbu erlbu lerbu elrbu buler ubler bluer lbuer ulber luber buelr ubelr beulr ebulr ueblr eublr bleur lbeur belur eblur lebur elbur ulebr luebr uelbr eulbr leubr elubr ruleb urleb rlueb lrueb ulreb lureb ruelb urelb reulb erulb uerlb eurlb rleub lreub relub erlub lerub elrub ulerb luerb uelrb eulrb leurb elurb
Note: these 'words' (valid or invalid) are all the permutations of the word brule. These words are obtained by scrambling the letters in brule.