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:     Dad , you keep talking about family in New Zealand . Who are they ? 
 Person2:  Well , that's your uncle Bill , his wife and two of their daughters . 
 Person1:      Is uncle Bill your brother ? 
 Person2:  No , your uncle Jack is my brother , Bill is my brother-in-law , your mom's brother . 
 Person1:      So his two daughters are my cousins ? 
 Person2:  That's right , Sarah and Jane are both your cousins although they are step-sisters . 
 Person1:      What are step-sisters ? 
 Person2:  Sarah is your uncle Bill's older daughter . When she was young , Bill's first wife , Sarah's mom died . Three years later Bill married again . 
 Person1:      So uncle Bill's wife is Jane's mother but not Sarah's mother . Right ? 
 Person2:  Yes . She is Sarah's step-mother . 
 Person1:      And when are they coming to visit us ? 
 Person2:  They want to travel to Europe next year , and will visit us at the same Ae . 

1