You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.

Example Input: Sentence1: I have information for the Parkside Police Station, is this close to your location? Sentence2: You're welcome. The police will help you immediately. Goodbye. Sentence3: Thank you for your help Sentence4: Please put me in touch with the local police, I was just robbed. Sentence5: The phone number is 01223358966 and the post code is CB11JG. Sentence6: I don't know, could you just give me the postcode and phone? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: It is in the centre part of town. Sentence2: That's all. Thank you, goodbye! Sentence3: What is its phone number? Sentence4: Okay, thanks. And what area is it in please? Sentence5: Michaelhouse Cafe is at St. Michael's Church Trinity Street City Centre. How does that sound? Sentence6: I am looking for a restaurant in the expensive price range that serves Belgian food. Sentence7: The phone number is 01223 309147. Sentence8: I have nothing available meeting your request, would you like to try a different price range or another type of cuisine? Sentence9: What is the address of the restaurant? Sentence10: Yes, is there any expensive European eateries? Sentence11: That's good, thanks. Sentence12: Would you like anything else? Sentence13: Yes, there are 4 expensive restaurants serving european food. Which area would you like? Sentence14: your welcome. thanks for calling Question: Who has spoken the sentence 1? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Hello, I need to find a cheap hotel that has free parking in Cambridge Sentence2: we don't have that information available. Sentence3: I don't care about a particular area, but I would like a guesthouse. Sentence4: Not in the south, I'm afraid. Would you like a different type of attraction? Sentence5: Can you pick one you know is a good place to stay and book it for 7 people staying 4 nights starting Monday? Sentence6: Is there any good attractions in the south, you'd recommend? Sentence7: You're all set at the alexander bed and breakfast. Your reference number is 5X64UYIN . Anything else I can do for you? Sentence8: There are 8 choices, any preference for type? Sentence9: Do you happen to have any colleges to visit? Sentence10: Can I get their entrance fee, as well? Sentence11: Yes, I have found Cineworld Cinema that is in the south area. Their address is cambridge leisure park, clifton way. Is there anything else I can help you with? Sentence12: We have a ton of those! Are you interested in a particular area of town? Sentence13: Yes, I would. Perhaps a theatre or cinema? Sentence14: There are 9 different guesthouses that fit that criteria. What area of the city would you like to stay in? Question: Who has spoken the sentence 13? (A) User (B) System
Example Output:
Answer: (B) System