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:     Tom ? Oh , it's been a while since we've talked to each other . Nice to hear you again .  
 Person2:  Same here . Hey , did you know Susan is going to get married . She invited me to her wedding and she wants you to attend also .  
 Person1:      Really ?  
 Person2:  Definitely . I'm calling to tell you this .  
 Person1:      Why didn't she call me ?  
 Person2:  She tried , but the line is always busy .  
 Person1:      Well , I may have stayed on the phone too long . Can you give me her number ? I'll call her later .  
 Person2:  Of course . It's 555-4653 .  
 Person1:      Thanks . So how are things with you ?  
 Person2:  Pretty good . I've just bought a new house .  
 Person1:      Wow ! Great ! Where ?  
 Person2:  In the suburb . How are you and Carol ? Still living in town ?  
 Person1:      Yeah , it's really convenient . The theater and Shopping Mall are within walking distance . Well , I got to go . I'll get in touch with you soon .  
 Person2:  Okay . Don't forget to call Susan .  
 Person1:      Don't worry . Bye . 

0