instruction:
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.
question:
No. I need to observe it with subtitles. I need to observe The Aftermath.
answer:
No


question:
Could you suggest another similar restaurant that serves alcohol?
answer:
Yes


question:
I want a reservation for a restaurant.
answer:

No