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

Ex Output:
No

Ex Input:
Where is it located? What time would you like your reservation?

Ex Output:
Yes