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.

Input: Consider Input: Do they serve liquor there?

Output: Yes


Input: Consider Input: Yes, thank you. How's the pricing? Low priced?

Output: Yes


Input: Consider Input: Which city should I choose and what time do you want the reservation for?


Output: Yes