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]: I want to eat out today, and would like a reservation at a restaurant.
[EX A]: No

[EX Q]: Is there any particular type of food you want, like Chinese, Mexican, or anything else?
[EX A]: Yes

[EX Q]: Do you have a preference as to which restaurant the reservation is made?
[EX A]:
Yes