Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Actually I am craving singaporean food, price is no object. I would also like something in the centre area. Sentence2: The train I'm looking for should depart from Stevenage and be leaving after 16:45. Can you help? Sentence3: Okay, any type in mind? Sentence4: Okay. You mentioned finding a local restaurant, initially. Would you like me to search for one? If so, what kind of cuisine? Sentence5: Unfortunately, there is not a singaporean restaurant in the centre of town. Any other preferences? Sentence6: Do you have any asian expensive restaurants? Sentence7: I am traveling to Cambridge and looking forward to try local restaurants. Sentence8: yes, there's a place called kymmoy. Sentence9: I'm looking for something local. What do you recommend? Sentence10: It depends on what your price range is. Sentence11: Thank you so much for your information. Sentence12: enjoy your stay in cambridge! Question: Who has spoken the sentence 11? (A) User (B) System
Output:
Answer: (B) System