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:     We're forming a study group to prepare for the finals . Do you want to join us ?  
 Person2:  But the semester just started ? Why the rush ?  
 Person1:      After you try it once this way , I don't think you'll ever put off studying till the end again .  
 Person2:  How often do you meet ?  
 Person1:      We plan to get together once a week .  
 Person2:  What days , do you know ?  
 Person1:      We were talking about Wednesday evenings at the library , from seven to eight .  
 Person2:  Okay , count me in . 

0