TASK DEFINITION: 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.
PROBLEM: What type of cuisine do you want? Mexican, Chinese or which one?

SOLUTION: Yes

PROBLEM: Yes, that sounds right. What's their number, and do they serve alcohol?

SOLUTION: Yes

PROBLEM: I've been off the grid for an entire week. I'm dying to watch a movie now!

SOLUTION:
No