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 very welcome. Thank you and goodbye! Sentence2: The earliest train departs Leicester at 05:09 and arrives in Cambridge at 06:54. The cost is 37.80 pounds per ticket. Sentence3: That's all that I need. Sentence4: Any of those will work. Which one is your favorite and where is it located? Sentence5: I'll be departing from Leicester, headed to Cambridge. What do the prices look like? Sentence6: No problem. There are a lot of other options like boating, cinema, colleges, a concerthall, museums, nightclubs, a park, theatres and swimming pools. What are your interests? Sentence7: I also need a train on Wednesday, arriving by 19:00. Sentence8: I'm looking for something to do in the centre of town. Sentence9: Travel time is approximately 105 minutes. Sentence10: Would you like any more information on other attractions? Sentence11: I would really like it to be a attraction type. Sentence12: What is the travel time? Sentence13: Great! I found a lot of things that match what you're looking for. Do you like architecture? Sentence14: I can help you with that. What are the departure and destination cities you were looking for? Sentence15: No, that will be all. Thank You for all your help. Sentence16: I'd try the cambridge contemporary art museum, at 6 trinity street. Question: Who has spoken the sentence 13? (A) User (B) System

Ex Output:
Answer: (B) System


Ex Input:
Sentence1: I was just involved in a car accident. Sentence2: You should contact this number: 01223358966. Sentence3: The address is Parkside, Cambridge, postcode CB11JG. Sentence4: Yes, I have a passenger that is hurt. How can I get to the hospital to make sure they are okay? Sentence5: You are welcome. Have a great day. Sentence6: I'm very sorry to hear that! Have you called the police yet? If not here is their number 01223358966. Is there anything else I can help with? Sentence7: Thanks, what's the address and postcode to the police department? Sentence8: Thank you for the info. That'll be all for now. Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: What part of town would you like ? Sentence2: Leave after 14:45. I need a booking for 7 people and the reference number. Sentence3: I need a train leaving Cambridge on Sunday. Sentence4: Thanks so much for your help, I think that will be all I need today. Sentence5: Alright I booked that, and your reference is PMCEY5JA . Anything else I can do? Sentence6: Can I get your destination please? Sentence7: Stansted Airport please. Sentence8: You're very welcome. Enjoy your stay. Sentence9: i'm also looking for info about a restaurant. Sentence10: What time would you like to leave? Sentence11: Booking was successful, the total fee is 56.56 GBP payable at the station. Reference number is : LZY6ET2M . Is there anything else I can assist you with today? Sentence12: I am specifically looking for a restaurant called fitzbillies restaurant. I am wanting to book a table for 10:15 for 7 people on Sunday. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:

Answer: (A) User