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:     What is your favorite pastime ?  
 Person2:  Fishing . It's great fun .  
 Person1:      Is it ? Mine is climbing mountains on Sunday mornings .  
 Person2:  No wonder you always look so active . 

1