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: Thank you very much?

SOLUTION: No

PROBLEM: Do you like any particular kind of food like Italian, Chinese or any other?

SOLUTION: Yes

PROBLEM: Thats right. Is it affordable? Do they serve liquor?

SOLUTION:
Yes