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:     I was wondering how you are going to calculate our final grades .  
 Person2:  Grades are based on many things  
 Person1:      What counts the most ?  
 Person2:  Actually I look at all of it and let's not forget class participation .  
 Person1:      Do you grade on a curve or use percentages ?  
 Person2:  Homework , attendance , and quizzes are sixty percent ; the mid-term and final are worth twenty percent each .  
 Person1:      What if we miss something ?  
 Person2:  I will allow one unexcused absence ; after that you need to contact me ahead of time .  
 Person1:      Will you tell us if we are failing during the year ?  
 Person2:  You will be able to track your progress during the year . 

1