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 ever thought of going to Africa ? 
 Person2:  No , it might be dangerous there . 
 Person1:      Would you like to go with me ? 
 Person2:  I'd like to , but I'm tied up with my paper . 

1