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:     How about going to dance this evening , Jane ? You will find that the night life of this city is very interesting ! 
 Person2:  Good idea . There is a good nightclub nearby , isn't it ? 
 Person1:      Yes , the dance hall is nice with various styles of music . 
 Person2:  ( In the club ) Look at those people in the dance floor , they are so crazy . 
 Person1:      That's rock and roll with fast tempo . 
 Person2:  I like the slow dance . I am good at rumba and waltz . 
 Person1:      Take it easy . The time for slow dance is the middle part of the party . 
 Person2:  Let's find a quiet seat and sit down for beverage . 
 Person1:      OK , follow me . 
 Person2:  Listen , it is waltz . I like the elegant step of the old styles . 
 Person1:      May I ? 
 Person2:  Sure . 
 Person1:      ( When they are dancing ) You dance gracefully ! 

0