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:     Hi , where have you been ?  
 Person2:  I was away for my vacation .  
 Person1:      Oh , how was it ?  
 Person2:  Good . I wish I could have another vacation . 

1