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:     Did you hear what happened to Mike last night ?  
 Person2:  No , what ?  
 Person1:      Well , apparently he had too much to drink and got into some kind of trouble . Typical , isn't it ?  
 Person2:  Oh , no . What kind of trouble ?  
 Person1:      Well , I don't know the details , but ... 

1