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:     The question is easy for everybody.Don ' t you think so ?  
 Person2:  Yeah , it's very easy . But it's above Nick's head  
 Person1:      Why do you say so ?  
 Person2:  He's always confused by easy questions . 

1