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

Example Input: Sentence1: Probably the emergency department, the phone number is 01223217118. Sentence2: Thank you for the information. Sentence3: Which department should I contact for a sprained ankle? Sentence4: Nope that is it. Thank you Sentence5: I want to find a hospital in town Sentence6: Thank you , could you provide me with the email address? Sentence7: Addenbrookes Hospital is located at Hills Rd, Cambridge. Is there a particular department you're looking for? Sentence8: You are very welcome. Is there anything else I can help you with today? Sentence9: You're welcome. Thank you for using our service. Sentence10: Unfortunately there isn't an email address listed here. Sentence11: The address is Hills Road, Cambridge. Sentence12: Can I have the address please. Question: Who has spoken the sentence 7? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Okay, thank you. I would also like to go to a museum while I'm in town. Could you give me some information on possible options? Sentence2: You're very welcome. Have a good day, goodbye. Sentence3: No thank you. Could you recommend your favorite museum? Sentence4: Yes I am looking for a place to stay that includes free wifi. I would prefer a guesthouse. Sentence5: I have found several guesthouses is there a particular are you wish to stay in? Sentence6: There are many different museums available. Is there a certain area you would prefer? Sentence7: I have the El Shaddai in the center that is cheap and has a 0 star rating. Would you like a booking? Sentence8: The Broughton House Gallery is a lovely museum in the centre of town. It's located at 98 King Street cb11ln and has free entrance. Their phone is 01223314960. Would that work? Sentence9: Your reference number is 0E0R0NEJ . Sentence10: Yes they sure do. Would you like me to book you a room? Sentence11: Yes that will be fine. I will be needing accommodations for 5 adults for a total of 4 nights 5 days beginning Sunday. Include reference number. Sentence12: I am looking for a cheap hotel with a rating of 0 out of 5 stars. Sentence13: Actually, yes, that's great. You've answered all my question wonderfully, thank you. Bye! Sentence14: Does the El Shaddai include free wifi? Question: Who has spoken the sentence 3? (A) User (B) System
Example Output: Answer: (B) System

Example Input: Sentence1: Ok alexander bed and breakfast it is a guest house located in centre and is cheap with 4 stars. The address is 56 saint barnabas road. post code cb12de Sentence2: What area would you prefer? Sentence3: We have 16 options available that may suit your needs. Can you tell me what price range you are interested in? Sentence4: There are 18 options, do you have any other preferences such as area or price range? Sentence5: That doesn't matter. I just need the price range, address, and postcode. You pick the type. Sentence6: Thanks. Could you tell me what kind of food the Peking Restaurant serves? Sentence7: Thank you, goodnight. Sentence8: I need one in Cambridge and I would like a 4 star rating. Sentence9: I have no particular preference on price range. Sentence10: Thank you for your help. That's all I need for now! Sentence11: I need a place with free parking. Sentence12: Hello, I am looking for a guest house. Sentence13: Great, I can help you, let me just get some more information. Is there a specific location or price range you'd like to stay within? Sentence14: You are welcome. Thank you for using our service. Goodbye! Sentence15: The Peking Restaurant serves expensive Chinese food. Sentence16: Okay. Glad I could be of help. Question: Who has spoken the sentence 4? (A) User (B) System
Example Output:
Answer: (A) User