Given a paragraph about movies and a set of conversational questions and answers about the paragraph, say whether the passage contains sufficient information to answer the follow-up question. Say Yes if it is answerable; otherwise, say No. 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:`.

Let me give you an example: CONTEXT: I think it's deliberately ambiguous. If it's real, the inconsistencies are easily explained by Vidal's fascist belief system. These elements simply are not part of his world. If it's fantasy, then of course only Ofelia can see these thing because she imagined them. I think part of Del Toro's purpose in the film was to maintain the plausibility of both of these interpretations. <sep> Q: Is Ofelia just dreaming things to get herself in a fairy world? A: If it's fantasy, then of course only Ofelia can see these thing because she imagined them  Q: Are the things happening for real but visible only to Ofelia? A: If it's real, the inconsistencies are easily explained by Vidal's fascist belief system. These elements simply are not part of his world  <sep> FOLLOWUP_Q: When Vidal pulls the mandrake root out of Ofelia's mother's bed, is it just a normal root?
The answer to this example can be: No
Here is why: The answer is not mentioned in the text. Hence not answerable.

OK. solve this:
CONTEXT: Peter Ward was accused of murdering his family, but thought to be insane. He was sent to Greenhaven. He was eventually released. As Will Atenton he creates the family and story he needs to exist in his old house, while only seeing it as it used to be... thus making his way back to his home. There, he eventually uncovers who he is and who actually did kill his family. The audience learns why his wife shot him at this time. When was Peter in Greenhaven? After his family was killed. Why was he considered nuts? He insisted that he was innocent despite the evidence and lack of other suspects. The death of his family fractured his personality and drove him temporarily insane, to the point where he created his alter-ego of Will Atenton.  <sep>  Q: When did Peter/Will go to Greenhaven?
Answer:
Yes