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:     Hey , there ’ s Leo . I wonder why he ’ s walking arm in arm with that young woman .  
 Person2:  It ’ s as plain as the nose on your face . They ’ re dating each other .  
 Person1:      You ’ re pulling my leg ! She must be thirty years younger than Leo . Talk about robbing the cradle !  
 Person2:  Well , you can bet this relationship ’ s going to be a flash in the pan .  
 Person1:      It must have been love at first sight because I know he didn ’ t have a girlfriend last week .  
 Person2:  I think you are absolutely right . Actually , my father proposed to my mother after knowing her only two weeks . They got married a month later . 

1