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 always been on this site ? 
 Person2:  No , we used to be on an industrial estate on the outskirts of York . 
 Person1:      Why did you move ? 
 Person2:  We needed larger premises so we moved to this greenfield site last year . It's nearer the motorway so it's better for transportation . 

1