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

Ex Input:
Sentence1: You're welcome, glad I could help. Sentence2: I personally like Parkside Pools. It's in the center of town, on Gonville Place. Sentence3: Any area is fine. Which of the 4 swimming pools do you suggest? Sentence4: It is cb11ly. Is there anything else I can help you with? Sentence5: Where will you be departing from? Sentence6: Thanks. That was all I needed. Goodbye. Sentence7: I am departing from Cambridge. Sentence8: I am looking for information on places to go in Cambridge. Can you help with that? Sentence9: My destination is london kings cross Sentence10: Can I get the postcode as well? Sentence11: I can help with that. Is there a particular area you're interested in? Sentence12: Yes, there are 4 swimming pools that match those requirements. Is there a particular area you would like to go to? Sentence13: There are 278 trains that meet that criteria. Would you like to narrow down your options by departure site, destination, or arrival time? Sentence14: I have made that reservation and your reference number is 1702SDBO . Sentence15: TR1502 arrives in london kings cross friday at 11:51. Would you like me to book you any seats? Sentence16: I also need a train leaving after 11:00 on friday Sentence17: What I'd really like is to find a swimmingpool. Sentence18: Yes book for 8 people and I need a reference number Question: Who has spoken the sentence 13? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: ok thank you so much Sentence2: Yes, can you provide me the travel time and the price as well? Sentence3: I would be happy to book that for you. Are you travelling alone? Sentence4: That is all I need today thank you for your help. Sentence5: TR0721 departs at 11:50. Would you like me to book it for you? Sentence6: Absolutely! I have 70 trains going from cambridge to ely. Do you have a departure and/or arrival time? Sentence7: The address is the grafton centre, east road. Unfortunately, there isn't an entrance fee listed. Would you like information on an alternate attraction? Sentence8: I am looking for places to go in town located in the centre of town. Sentence9: There is the Vue Cinema downtown. If that interests you, their phone number is 08712240240. Sentence10: No that's okay. However, I am also looking for a train from Cambridge to Ely, could you help me find one? Sentence11: You're welcome, have a great day. Sentence12: Price is 3.52 pounds. Duration is 17 minutes. Sentence13: Yes, i would like to leave Saturday after 11:30 Sentence14: What is the entrance fee and the address? Question: Who has spoken the sentence 8? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: The phone number is 01223245151. Is there anything else I can help you with? Sentence2: No, that's everything. Thanks! Sentence3: Great, thanks again. Goodbye! Sentence4: welcome. at your service next time Sentence5: Have a great day! Sentence6: Is there a hospital near by? Sentence7: The medical center in Cambridge is called Addenbrookes Hospital. It is located at Hills Road, in postalcode CB20QQ. Sentence8: I will need their phone number also. Question: Who has spoken the sentence 3? (A) User (B) System

Ex Output:

Answer: (B) System