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.

Input: Consider Input: No. I need to observe it with subtitles. I need to observe The Aftermath.

Output: No


Input: Consider Input: At what time do you want to go?

Output: Yes


Input: Consider Input: Yea, that sounds great. Is Dana's expensive?


Output: Yes