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:
It's a restaurant called Yum Yum, and it's for six pm.

Ex Output:
No


Ex Input:
Thanks a lot, I won't be needing any more help.

Ex Output:
No


Ex Input:
Okay, what is your preferred restaurant?

Ex Output:

Yes