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:     Repairman.May I come in ?  
 Person2:  Come in please .  
 Person1:      What's the matter , sir ?  
 Person2:  The toilet doesn't flush .  
 Person1:      Let me see.En .. it's right now.You can try it .  
 Person2:  Wonderfull.Thanks a lot .  
 Person1:      You are welcome . 

1