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

Example Input: Sentence1: There are 2, both free. They are sheep's green and lammas land park fen causeway, and other is wandlebury country park. Would you like information on either one? Sentence2: There are only 4 boat attractions in town. Camboats in the east. Riverboat georgina is in the north. Scudamores punting company and the cambridge punter are in the centre of town. Sentence3: I'm looking for boats to look at. Can you look in the south? Sentence4: Thanks, could you also book me a taxi between the two locations please? Sentence5: I can arrange a car for you if you'll tell me whether you'll be travelling from the park to the restaurant or vice-versa, and tell me the date and time. Sentence6: Yes, I need to get their phone number and address, please. Sentence7: Could I get the entrance fee for wandlebury country park please? Sentence8: Booking was successful. Expect a grey Lexus. Their number is 07386542982. Anything else? Sentence9: I need to leave the park by 16:15. Sentence10: There are nine places in the south any preference on restaurant type or price range? Sentence11: Are there any boats in the park? Sentence12: The Pizza Hut Cherry Hinton is located in the South and has a moderate price range. Would you like more information? Sentence13: My pleasure. Enjoy your stay. Sentence14: Could you help me find a restaurant in that area? Sentence15: The park is free. There is no entrance fee. Sentence16: Their phone number is 01223323737, and they are located at G4 Cambridge Leisure Park Clifton Way Cherry Hinton. Sentence17: Thank you. Are there any parks in the south? Sentence18: Thank you for all your help. That should be everything today. Sentence19: I'm afraid we don't have any boats in the south. Would you like to try another area? Sentence20: I'd like a moderately priced Italian place. Question: Who has spoken the sentence 5? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Can you recommend a moderately priced restaurant in the South part of town? Sentence2: could i have the address and phone number please? Sentence3: sure, pizza hut cherry hinton is located at G4 cambridge leisure park clifton way cherry hinton and the phone number is 01223 413000. Is there anything else I can help you with? Sentence4: Would you prefer Italian or Modern european food? Sentence5: I don't care. Either one is fine. Sentence6: No, that is all I needed. Thank you. Bye bye. Sentence7: How about Pizza Hut Cherry Hinton. It serves Italian food, is in the moderate price range, and in the south part of town. Sentence8: Goodbye. Question: Who has spoken the sentence 5? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: a and b guest house 124 tenison road cb12dp and the phone number is 01223315702 Sentence2: Thank you! I also need a reservation at the Saffron Brasserie for 2 people at 15:45 on Wednesday please. Sentence3: Thank you for using Cambridge TownInfo. Goodbye. Sentence4: that is it for today thank you very much Sentence5: We have three moderate priced places to stay in the east with free wifi, would you like a recommendation? Sentence6: Yes but to help it doesn't need to have free parking. Sentence7: i can book you one if you provide me with more information on it Sentence8: Can you pick one and send me the postcode, address and phone number? Sentence9: I would like to stay in the east, if possible. Sentence10: Do you have a location preference? Sentence11: Okay I have your reservation for the Saffron Brasserie booked and your reference number is QJ98YT0F . Sentence12: I'm looking for a moderately priced hotel to stay at that includes free wifi. Can you help? Question: Who has spoken the sentence 6? (A) User (B) System
Example Output:
Answer: (A) User