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:     Did you hear about Bob and Mary ? 
 Person2:  No , what happened ? 
 Person1:      They had an argument and split up . 
 Person2:  Really , what's going to happen now ? 

1