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:     Is this Mr.Smith ' s residence ?  
 Person2:  Yes , it is .  
 Person1:      My name is Paul.Is Mr.Smith in ?  
 Person2:  Yes , he is . 

1