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:     Have you ever been in an earthquake ?  
 Person2:  Yes , I experienced one when I was in Tokyo once . The tremors only lasted a few seconds though and then it was over .  
 Person1:      Do you know where it measured on the Richter scale ?  
 Person2:  I don't remember , but it wasn't very serious . Have you ever been in an earthquake ?  
 Person1:      No , but I was in quite a few tornados when I was younger .  
 Person2:  Where are you from ?  
 Person1:      I'm from the plains of the Midwest . It's a prime location for tornadoes .  
 Person2:  Did your house ever get damaged from the winds ?  
 Person1:      Most of the time we were lucky , but once a tree from our front yard was ripped out by its roots and ended up in our living room .  
 Person2:  Wow , that must have really been scary .  
 Person1:      Actually , some of my fon best memories of my childhood were of spending time with my family in the basement waiting for the tornados to pass .  
 Person2:  Have you ever experiences a flood ?  
 Person1:      No , but my father's car was destroyed in a flood once . It actually happened the day after he bought the car !  
 Person2:  That sure didn't last long ! 

1