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:     What's the Mountaineering Club doing this weekend ?  
 Person2:  We are going to climb a cliff on the Yangtze River .  
 Person1:      How hard is the climb ?  
 Person2:  It is a very difficult climb , because there are not many places to put your hands and feet .  
 Person1:      What did you do last week ?  
 Person2:  We rappelled down the side of a 300 - foot cliff . It's very exciting .  
 Person1:      Wow . That sounds like a lot of fun . I am sorry I missed it .  
 Person2:  Well , you should come this weekend . I think you could do the climb .  
 Person1:      Yeah , I will . See you then !  
 Person2:  Ok , see you . 

1