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:
Could I assist you with something else?
answer:
Yes


question:
Okay, what time would you like to go out to eat?
answer:
Yes


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

No