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:     Is this your new teacher ? 
 Person2:  Yes , it is . 
 Person1:      Is she short ? 
 Person2:  No , she ’ s average . 
 Person1:      What color are her eyes ? 
 Person2:  They ’ re dark gray . 
 Person1:      What color is her hair ? 
 Person2:  It ’ s blond . 
 Person1:      And how old is she ? 
 Person2:  I don ’ t know . 

1