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.

[EX Q]: Yes, that sounds right. What's their number, and do they serve alcohol?
[EX A]: Yes

[EX Q]: That is perfect. Do they provide liquor and live music?
[EX A]: Yes

[EX Q]: Do you prefer American or Chinese food?
[EX A]:
Yes