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:     Who's that man over there talking to James ?  
 Person2:  Where ? Oh , that's Henry .  
 Person1:      He's very handsome , isn't he ? What's he like ?  
 Person2:  He's very nice , actually , but rather eccentric .  
 Person1:      Really ? I love eccentric people .  
 Person2:  Yes , but he may be too eccentric even for you .  
 Person1:      Why ? What do you mean by that ?  
 Person2:  Well , haven't you heard ?  
 Person1:      Heard what ? No one ever tells me anything .  
 Person2:  Well , apparently , he's been having an affair with his secretary .  
 Person1:      Really ! How fascinating .  
 Person2:  According to Mary , he's divorcing his wife and there's a big fight going on about the children . I thought everyone knew .  
 Person1:      Well , what can I say ? I didn't know . Oh , I meant to tell you earlier , your blouse doesn't really match your skirt . Those colors don't really suit you either .  
 Person2:  Oh . Thanks . Look , I must just go and say hello to someone . I'll be right back . 

1