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]: Do you prefer any city and what should be the menu?
[EX A]: Yes

[EX Q]: To confirm: I'm booking a reservation for 2 people at Jing-Jing Szechwan & Hunan Gourmet in Palo Alto next Friday at 12:15 pm.
[EX A]: No

[EX Q]: Do they serve liquor and play live music?
[EX A]:
Yes