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 read the letter in the paper about smoking ? The person who wrote that must be crazy .  
 Person2:  I don't think so . I think the government should do everything it can to discourage people from smoking .  
 Person1:      Maybe so . But a law banning cigarettes would do no good .  
 Person2:  No.You can't suddenly make smoking illegal . But the government could prohibit smoking in public places like cinemas and theaters . 

1