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:`.

Let me give you an 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.
The answer to this example can be: Why has it been diminished?
Here is why: 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.

OK. solve this:
CONTEXT: The money belonged to Barr so it had his fingerprints on it. The gun was also Barr's as was the van. The whole point of Charlie's actions were to frame Barr for the killing. He had befriended Barr to get close to him and was close enough to be able to drug him and take the various pieces of property away from Barr's house and to return them with incriminating evidence without Barr realising he'd been set up. If I remember correctly the movie shows a jar filled with coins on Barr's desk. Presumably Charlie just took one of these to leave that final piece of incriminating evidence in the multi-story car park.  <sep>  Q: How did Charlie get Barr Finger prints? A: Charlie just took one of these to leave that final piece of incriminating evidence 
Answer:
What did Charlie take one of?