Given a paragraph about movies, and a set of conversational question answers about the paragraph, generate a relevant question to the topic of the paragraph. The paragraph has the prefix 'CONTEXT:'. Each conversation question has a prefix `Q:` followed by the answer prefix `A:`.
One 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.
Solution is here: Why has it been diminished?
Explanation: The question is valid since it is on the same topic and a follow-up of the previous answer in the conversation. The question asks about the reason why the power held over Margaery by Cersei have diminished.

Now, solve this: CONTEXT: He doesn't. All he knows is that Stark will be there. Whiplash's aim is not necessarily to confront Stark directly, but to humiliate him by attacking the race. showing that Stark's technology is not unique to him, to crack the world's confidence in Stark so that the government will have no choice but to step in to bring him down. Stark choosing to drive the car, thus allowing Vanko to attack him directly, to "make him bleed", as he put it, is merely a very useful bonus.  <sep>  Q: How did Whiplash know that Tony Stark is going to the racing track? A: He doesn't. All he knows is that Stark will be there. Whiplash's aim is not necessarily to confront Stark directly, but to humiliate him by attacking the race 
Solution:
How come Whiplash wanted to humiliate stark though?