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 do you shoot pool ?  
 Person2:  You have 16 balls on the table , 7 solid colored , 7 striped colored , a black 8 ball , and the white ball .  
 Person1:      And ?  
 Person2:  You hit the white ball with your cue . The white ball hits the colored balls . And you want to get the colored balls into the pockets .  
 Person1:      How do you know whether you should hit the solid or the striped one ?  
 Person2:  At the beginning , it does not matter , but once someone gets one ball in , it is set .  
 Person1:      Can I get the black ball in ?  
 Person2:  The black ball has to be the final ball in the pockets .  
 Person1:      Let's go and try now ! 

1