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:
Works for me. How pricey are they?

Ex Output:
Yes


Ex Input:
I think not. Thanks for your diligence.

Ex Output:
No


Ex Input:
Yup! that would work.

Ex Output:

No