brere rbere berre ebrre rebre erbre brree rbree brree rbree rrbee rrbee berre ebrre brere rbere erbre rebre rerbe errbe rrebe rrebe errbe rerbe breer rbeer berer ebrer reber erber breer rbeer berer ebrer reber erber beerr eberr beerr eberr eebrr eebrr reebr erebr reebr erebr eerbr eerbr brree rbree brree rbree rrbee rrbee brere rbere berre ebrre rebre erbre brere rbere berre ebrre rebre erbre rrebe rrebe rerbe errbe rerbe errbe berer ebrer breer rbeer erber reber beerr eberr beerr eberr eebrr eebrr breer rbeer berer ebrer reber erber erebr reebr eerbr eerbr reebr erebr rereb erreb rreeb rreeb erreb rereb reerb ererb reerb ererb eerrb eerrb rreeb rreeb rereb erreb rereb erreb ererb reerb eerrb eerrb reerb ererb
Note: these 'words' (valid or invalid) are all the permutations of the word brere. These words are obtained by scrambling the letters in brere.