Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: Hello, I am looking for a Lebanese restaurant in the centre of town. Sentence2: Ali Baba is located at 59 Hills Road City Centre and the phone number is 01462 432565. Sentence3: You're very welcome. Have a good night. Sentence4: What is the address and phone number? Sentence5: Ali baba is a lebanese restaurant in the moderate price range in the Centre part of town. Sentence6: Thank you. Good bye. Question: Who has spoken the sentence 5? (A) User (B) System
Output:
Answer: (B) System