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.

It's so boring .  Don't you like it ?  I don't . Is there anything worth watching on the other channel ?  I think it's a basketball match on channel 5 .  Do you mind if we switch over ?  Well , I'd rather see a movie .  What's the movie ?  ' Star war ' .  It must be interesting .  Yes , you're right . 
Yes

OK , I'm sorry it took so long .  I understand .  The phone has been ringing off the hook today .  Some days are just like that . 
No

Do you have wool socks ?  Yes . We have socks made of various materials . These socks are of imported wool .  Can you guarantee the quality ?  Yes , absolutely .  Where are the panty-hose ?  Here . We have black , white and transparent panty-hose here . 

Yes

