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:     What's the matter with you then ? You look miserable .  
 Person2:  It's us .  
 Person1:      What do you mean by us ?  
 Person2:  Well , you always say you're busy .  
 Person1:      That's right .  
 Person2:  And you often go back to live with your parents and leave our son in the room by himself .  
 Person1:      I ... I ... I miss my parents , also they miss me .  
 Person2:  Oh I remember , I cut terrible calls , and you didn't say anything about it .  
 Person1:      You mean I am groaned a few words ?  
 Person2:  Totally not . Perhaps it's about our marriage . 

1