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 Peter just retired ? 
 Person2:  Are you sure ? He is quite young , isn't he ? 
 Person1:      He is not young as he looks . I think he's almost sixty . 
 Person2:  Really ? He looks so young . 

1