evby veby ebvy bevy vbey bvey evyb veyb eyvb yevb vyeb yveb ebyv beyv eybv yebv byev ybev vbye bvye vybe yvbe byve ybve
Note: these 'words' (valid or invalid) are all the permutations of the word evby. These words are obtained by scrambling the letters in evby.