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]: How expensive is their menu?
[EX A]: Yes

[EX Q]: I need to book it at quarter past 7 in the evening in Daly City.
[EX A]: No

[EX Q]: Any preferred restaurant?
[EX A]:
Yes