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:     Frank ’ s getting married , do you believe this ?  
 Person2:  Is he really ?  
 Person1:      Yes , he is . He loves the girl very much .  
 Person2:  Who is he marring ?  
 Person1:      A girl he met on holiday in Spain , I think .  
 Person2:  Have they set a date for the wedding ?  
 Person1:      Not yet . 

1