Definition: You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. If the conversation begins with a question, label it '1' otherwise '0'.
Input:  Person1:     Hi , sir . Come and have a look here . We have all kinds of sweaters .  
 Person2:  I ’ m looking for a sweater for my wife . Tomorrow is her birthday . And I know she needs a woolen sweater .  
 Person1:      How do you like this grey one ? It ’ s pure wool , one hundred percent of Xinjiang wool .  
 Person2:  It feels good . Are there cowl-neck pullovers with the same color ? My wife prefers a turtleneck to a V-shaped collar .  
 Person1:      Yes , we do . What size do you want ?  
 Person2:  Size one . By the way , what if I bring home this sweater and my wife doesn ’ t like it ?  
 Person1:      Well , you can always bring it back to us for a full refund .  
 Person2:  All right . Could I have it gift-wrapped , please ?  
 Person1:      Yes , just a moment , please . 

0