mammy ammmy mmamy mmamy ammmy mammy mammy ammmy mmamy mmamy ammmy mammy mmmay mmmay mmmay mmmay mmmay mmmay ammmy mammy ammmy mammy mmamy mmamy mamym ammym mmaym mmaym ammym mamym maymm amymm myamm ymamm aymmm yammm mmyam mmyam mymam ymmam mymam ymmam amymm maymm aymmm yammm myamm ymamm mamym ammym mmaym mmaym ammym mamym maymm amymm myamm ymamm aymmm yammm mmyam mmyam mymam ymmam mymam ymmam amymm maymm aymmm yammm myamm ymamm mmmya mmmya mmmya mmmya mmmya mmmya mmyma mmyma mymma ymmma mymma ymmma mmyma mmyma mymma ymmma mymma ymmma mmyma mmyma mymma ymmma mymma ymmma ammym mamym ammym mamym mmaym mmaym amymm maymm aymmm yammm myamm ymamm amymm maymm aymmm yammm myamm ymamm mmyam mmyam mymam ymmam mymam ymmam
Note: these 'words' (valid or invalid) are all the permutations of the word mammy. These words are obtained by scrambling the letters in mammy.