Definition: You are shown a conversation between a user and system. Identify who has spoken the indicated sentence based on the conversation.
Input: Sentence1: I am looking for the addresses of each of the moderately priced restaurants in the south part of town. Sentence2: The address for Pizza Hut Cherry Hinton is G4 Cambridge Leisure Park Clifton Way Cherry Hinton and the address for Restaurant Alimentum is 152 - 154 Hills Road. Sentence3: There is restaurant alimentum which is a modern european restaurant located in the south part of town and is in the moderate price range. Sentence4: Is there anything else? Sentence5: No thank you good bye Sentence6: Thank you for using our system. Goodbye. Sentence7: Restaurant Alimentum's address is G4 Cambridge Leisure Park Clifton Way Cherry Hinton. May I help you with anything else? Sentence8: Could you give me the address for Restaurant Alimentum? Question: Who has spoken the sentence 4? (A) User (B) System
Output:
Answer: (A) User