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:     Excuse me , which one is of the highest quality here ?  
 Person2:  This one . It is of the best quality and excellently tailored as well . You may try it on .  
 Person1:      That is nice . But I don't quite like the collar .  
 Person2:  The collar ? It is just the collar that is popular with young people in Shanghai .  
 Person1:      I don't care what others wear . How much is it ?  
 Person2:  250 Yuan .  
 Person1:      Really ? Too expensive . I don't think I can afford it .  
 Person2:  But it is really worthwhile .  
 Person1:      OK , anyway , let me have it .  
 Person2:  Here you are .  
 Person1:      Thank you . 

1