TASK DEFINITION: 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.
PROBLEM: What type of food and in which city?

SOLUTION: Yes

PROBLEM: What city is Asya in? What time would you like the reservation for?

SOLUTION: Yes

PROBLEM: What kind of food do you prefer? Which city should the search use?

SOLUTION:
Yes