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 do you fancy? Chinese, Indian?

SOLUTION: Yes

PROBLEM: No thank you. That will be all.

SOLUTION: No

PROBLEM: What is their phone number and are they above average in pricing?

SOLUTION:
Yes