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:     Where are we headed now ?  
 Person2:  To a historic coffeehouse . It's got a little Mafia story to it .  
 Person1:      Awesome . Was someone killed there ?  
 Person2:  Oh , yeah , while he was eating , and he was a pretty famous Don .  
 Person1:      Cool ! Is it safe for us to eat there though ?  
 Person2:  Sure . In fact , nowadays , you'll see more tourists there than Italians . There are Mafia tours nowadays that go there to eat . 

1