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 Input:
Can you tell me the phone number?

Ex Output:
Yes


Ex Input:
Yes. What is the phone number? Can I buy alcohol there?

Ex Output:
Yes


Ex Input:
I want to make a reservation at a restaurant called Dong Que.

Ex Output:

No