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: Could you suggest another similar restaurant that serves alcohol?

Output: Yes

Input: Consider Input: I could not make the reservation. They serve California style food. They don't serve liquor. Wence's restaurant is very nice, should I try a reservation for 2 people today at 11:30 am?

Output: No

Input: Consider Input: What city are you in? Would you like American, Italian, or some other kind of food?
Output: Yes