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:     John got a heart attack last night .  
 Person2:  Oh really ? Is he all right ?  
 Person1:      Not so good , though his nephew took him to hospital in time .  
 Person2:  Poor old John ! I am ever so sorry . 

0