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:     Can you imagine a boat letting in the river ?  
 Person2:  That would be terrible .  
 Person1:      Sure thing . I have an experience like that .  
 Person2:  Oh , how were you saved finally ?  
 Person1:      I was in such a panic at that time . Fortunately another boat came along and I was saved from drowning . 

1