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]: Can you tell me if the prices are inexpensive?
[EX A]: Yes

[EX Q]: In San Mateo the restaurant is Sushi Yoshizumi.
[EX A]: No

[EX Q]: Yeah, that's right.
[EX A]:
No