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: What kind of food?

Output: Yes

Input: Consider Input: Please make it on the 3rd of MArch at quarter past 1 in the afternoon.

Output: No

Input: Consider Input: Do you prefer American or Chinese food?
Output: Yes