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:     Take care , Peter . Don't run so fast.Are you tired ?  
 Person2:  Oh , yes . May I sit on the grass ?  
 Person1:      No , you mustn't sit on the grass.Don ' t you see the notes ?  
 Person2:  Yes , I can see it.But what's on it ?  
 Person1:      It says Keep off the grass !  
 Person2:  Well , there's a bench under the tree.We can sit there .  
 Person1:      Be careful.You can't smoke here .  
 Person2:  Why not ?  
 Person1:      Can't you see the notes there ? It says No smoking here . 

1