Q: Given a paragraph about movies, and a set of conversational question answers about the paragraph, answer a follow-up question from the paragraph. The paragraph has the prefix 'CONTEXT:'. Each conversation question has a prefix `Q:` followed by the answer prefix `A:`, and the follow-up question has a prefix `FOLLOWUP_Q:`.
CONTEXT: Keeping in mind what we now know (that the monster is The Man In Black), we can only speculate at what John actually saw. Each person who saw the smoke monster presumably saw more than just a large cloud of smoke - they saw some kind of vision in the monster (if memory serves, this is what happened with Mr. Eko for example). What John saw probably affected him in a way that he wanted to keep whatever vision he saw to himself.  <sep>  Q: Why didn't Locke say he saw the monster? A: What John saw probably affected him in a way that he wanted to keep whatever vision he saw to himself  <sep> FOLLOWUP_Q: Why do you think John wanted to do this?
A:
we can only speculate at what John actually saw