instruction:
You are given a sentence from a conversation between a human and a virtual assistant. Your task is to identify whether the sentence is a question or not. Answer with Yes or No.
question:
In which city should I search?
answer:
Yes


question:
Ok ,That's great. I need to know its director? who is he?
answer:
Yes


question:
Yes that is correct. Are the prices inexpensive and do they have live music?
answer:

Yes