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:     Do you think the weather will be good this weekend ?  
 Person2:  I heard it might rain .  
 Person1:      Oh . That ’ s a pity . I thought that we might go hiking in the hills .  
 Person2:  Mmm ... Well we could go to that new art gallery instead .  
 Person1:      Yes that might be a better idea .  
 Person2:  Maybe we ’ ll meet some of the artists too .  
 Person1:      Ok - let ’ s do that then ! 

1