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

Ex Input:
Sentence1: Enjoy your day. Good bye. Sentence2: The address is colville road, cherry hinton. Sentence3: That is all I need, thank you. Sentence4: Sure, I can get you aboard a 15:21 arriving at 17:06. Would you like me to book a seat aboard TR9839? Sentence5: Sounds good. What is the postcode, please? Sentence6: You're welcome! Have a great day! Sentence7: Of course. The Cherry Hinton Village Centre has multiple sports in the east end of town. Sentence8: There are quite a few running all day to many different stations. Where would you like to go? Sentence9: I need a train leaving cambridge on thursday. Sentence10: I would like to go to Leicester and get there by 18:45 Sentence11: The postcode is cb19ej. Is there anything else I can help you with? Sentence12: Good bye. Sentence13: Thank you for using our service. have a good day! Sentence14: Oh wait! Before you go, can you give me some information on the cherry hinton village centre? Sentence15: Yes, may I have their address, please? Sentence16: Not right now. Thanks for the information though! Have a great day! Goodbye. Question: Who has spoken the sentence 4? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: I'd like to find some place to go on the east side of town. Sentence2: Thank you. Have a good day, goodbye. Sentence3: I can certainly suggest something for you. I have 10 options. Do you prefer an entertainment venue, or perhaps a museum or park, etc? Sentence4: Sounds great. That's all I needed. Thank you! Sentence5: I would prefer just anything in the east, can you give me the address and attraction type of one? Sentence6: No problem. How does the Funky Fun House sound? It is standard entertainment and it is located at 8 mercers row, mercers row industrial estate. Question: Who has spoken the sentence 2? (A) User (B) System

Ex Output:
Answer: (A) User


Ex Input:
Sentence1: Can I just get the address, star rating, and phone number? Sentence2: The Cambridge Belfry is a 4 star hotel at back lane, cambourne cb236bw. Their number is 01954714600. Sentence3: I need the train for Tuesday departing from Cambridge after 10:30. Sentence4: I recommend the Cambridge Belfry. Will you be booking a room today? Sentence5: I'm looking for a hotel to stay at in the West area of town. Are there any hotels that have free wifi over there? Sentence6: I'd be happy to help you with that. What day do you want to travel? Sentence7: Can I just get the train ID of one of them please? Sentence8: No problem. Goodbye. Sentence9: There are 11 trains of that type, leaving one minute after the hour every hour starting at 11:01. Would you like me to book a ticket? Sentence10: Yes, I have 4 entries for those criteria. What's your price range? Sentence11: The train ID for the 11:01 train is TR2130. Can I help you with anything else? Sentence12: Hi! I need a train to Broxbourne after 10:30. Sentence13: Cheap, it needs free parking also. Sentence14: Thank you for your help. Have a good day! Question: Who has spoken the sentence 1? (A) User (B) System

Ex Output:

Answer: (B) System