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:     Did you see that ?  
 Person2:  No , I missed it .  
 Person1:      How could you miss that ?  
 Person2:  Someone was in the way . 

1