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.

Ex Input:
no. it is for three people

Ex Output:
No

Ex Input:
Sure? Please tell me which city would you like to find a restaurant in and also if you prefer a specific type of food.

Ex Output:
Yes

Ex Input:
I can definitely help you with that. In which city would you like me to search?

Ex Output:
Yes