Determine whether there has been any questions asked by the speaker in the dialogue or not. If there has been a question in the dialogue then the output Yes otherwise output No.
One example: Are things still going badly with your houseguest ? Getting worse . Now he ' s eating me out of house and home . I ' Ve tried talking to him but it all goes in one ear and out the other . He makes himself at home , which is fine . But what really gets me is that yesterday he walked into the living room in the raw and I had company over ! That was the last straw . Leo , I really think you ' re beating around the bush with this guy . I know he used to be your best friend in college , but I really think it ' s time to lay down the law . You ' re right . Everything is probably going to come to a head tonight . I ' ll keep you informed .
Solution is here: Yes
Explanation: In this dialogue, there has been question present in the conversation so its ouput is Yes. So this is a positive example.

Now, solve this: I am a student in Cambridge University . I read your ad , I want to know something more about your room , please ? It's a big bedroom with a drawing room , facing a beautiful wood . Is there a bathroom ? No , but there is one downstairs , which my daughter used some years ago . It sounds good . Could I go and see it myself ? Certainly , you're welcome anytime . See you later ! ( after a while ) Good afternoon , Mrs . Smith . I called you just now . Welcome ! Come in , please ! Yes . This way please . Your room is upstairs ... Here it is . Wonderful ! A modest , comfortable room . Ah , a beautiful window , through which I can see a beautiful scene , and hear the birds singing . How nice ! Yes , if you want to wash something , there is a separate lavatory room outside . Excellent ! I like it ! When can I move in ? Anytime you like . OK .
Solution:
Yes