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.

[EX Q]: Yes. What kind of movie is it, and who directed it?
[EX A]: Yes

[EX Q]: Thank you very much that's all I need
[EX A]: No

[EX Q]: Yes, I want a reservation for twelve pm at a restaurant.
[EX A]:
No