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.

[Q]: How expensive is the restaurant? And can you find their phone number?
[A]: Yes


[Q]: Yes perfect. Do they serve liquor or have live music?
[A]: Yes


[Q]: There's no live music at the restaurant. They are located at 629 4th Street.
[A]:
No