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:
Do they serve liquor or have live music?

Ex Output:
Yes


Ex Input:
I can help you with that, let's gather some specifics first. Do you have a particular restaurant in mind, if not what area would you like me to look in, and what time do you need the reservation set for?

Ex Output:
Yes


Ex Input:
you're reservation is booked

Ex Output:
No