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 Input:
What number can they be reached at?

Ex Output:
Yes


Ex Input:
I would like my reservation for the 12th at half past 7 in the evening

Ex Output:
No


Ex Input:
Yes that's perfect, thanks. What's their price range?

Ex Output:

Yes