Yup: the assumption is that it won't even semantically parse. The only way that "correct horse battery staple" even makes sense is with an image and a story! M

Yup: the assumption is that it won't even semantically parse. The only way that "correct horse battery staple" even makes sense is with an image and a story! Much as passwords work on the lexical level, and adding random punctuation ensures it's not a dictionary word, breaking syntax and semantics is the analogue for passphrases.