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:     Mary , I think we should stop seeing each other .  
 Person2:  But , Bob , we were so good together .  
 Person1:      I'm sorry but it's for the best .  
 Person2:  I don't understand . We were getting along so well . 

0