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.

Example Input: Do they serve alcohol? And what's their phone number?
Example Output: Yes

Example Input: Okay, just to confirm: you want to watch How to Train Your Dragon: The Hidden World without subtitles, is that right?
Example Output: No

Example Input: I want to watch The Mustang.
Example Output:
No