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 you from , Laura ?  
 Person2:  Well , my whole family is in the United States now , but we're from Costa Rica originally .  
 Person1:      Oh , so you're from South America .  
 Person2:  Actually , Costa Rica isn't in South America . It's in Central America .  
 Person1:      Oh , right . My geography isn't very good ! 

1