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: Yes, that sound good, May i know Who's Its director?

SOLUTION: Yes

PROBLEM: I'd like to make a dinner reservation.

SOLUTION: No

PROBLEM: Do they have any liquor there?

SOLUTION:
Yes