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: Agent K (Tommy Lee Jones) witnessed the death of Agent J's (Will Smith) father, who was killed by an alien in an act that could have been prevented by Agent K. Considering the time travel elements of the third movie, and the fact that Agent K from the past was aware of his future after Agent J told him, he has essentially lived with the fact that the father of one of his only friends in the universe died because of his own failures. Since the "past" elements of the movie took place in 1969, this means he's lived with this memory for some 40 years.  <sep>  Q: What happened to Agent K to make him so grumpy and emotionless? A: Agent K (Tommy Lee Jones) witnessed the death of Agent J's (Will Smith) father  Q: So how did Agent J's father die? A: was killed by an alien in an act that could have been prevented by Agent K  Q: Oh, so do you think that he was stoical and cranky because he felt guilty about that? A: he has essentially lived with the fact that the father of one of his only friends in the universe died because of his own failures  <sep> FOLLOWUP_Q: Wow, so does Agent J know this is how his father dies?
Answer:
Considering the time travel elements of the third movie, and the fact that Agent K from the past was aware of his future after Agent J told him