<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
I've heard that the Mona Lisa painting, was stolen at one point, is that true?
<|assistant|>
Yes, it is true that the Mona Lisa painting was stolen from the Louvre Museum in 1911. The robbery had been carefully planned and involved an employee of the museum, but the identity of the perpetrator was never revealed. The painting was eventually returned nine days later, but the event caused a major scandal in France. It is believed to be the most famous art heist in history.