Part 1. Definition
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:`.
Part 2. Example
CONTEXT: The balance of power had shifted considerably since the first set of quotes. King Joffrey is dead, and his younger brother Tommen is now king. Unlike his wild card of an elder brother, Tommen is gentler and more prone to manipulation by his new bride. The Lannisters impeccable image has also been shattered. They failed to prevent the assassination of their king in the midst of his own wedding day, and the suspected assassin is the king's Lannister uncle. Not only do they look incompetent, they are divided among themselves. On the other hand, the Tyrells' situation is much stronger now. Tommen is already wrapped around Margaery's pretty little finger, and she knows that the assassination was orchestrated in part by her own family. In Margaery's eyes, the Lannisters look disoriented and lost. Putting on a show trial for one of their own, whom she knows is innocent of any wrongdoing. Whatever power Cersei held over Margaery has now been diminished. <sep>  Q: What was Margaery's motivation to call Cersei 'sister' again? A: Whatever power Cersei held over Margaery has now been diminished. <sep> FOLLOWUP_Q: Why has it been diminished?
Answer: King Joffrey is dead, and his younger brother Tommen is now king.
Explanation: The answer why Cersei's power over Margaery has now diminished is clearly mentioned in the passage.
Part 3. Exercise
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?
Answer:
we can only speculate at what John actually saw