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.

Q: They're prices are moderate.

A: No
****
Q: Yes, that sound good, May i know Who's Its director?

A: Yes
****
Q: What sort of food are you looking for? Mexican, American, etc? And which city should I search in?

A:
Yes
****