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:     What seems to be the problem ?  
 Person2:  My stomach hurts , Doctor .  
 Person1:      Has this been a problem before ?  
 Person2:  Yes .  
 Person1:      For how long ?  
 Person2:  I have had it on and off for the past three years . It's just gotten much worse these past two weeks .  
 Person1:      Do you only feel this way when you stomach is empty ?  
 Person2:  After I've eaten , it goes away for a while .  
 Person1:      Do you feel nauseous ?  
 Person2:  Yes , occasionally .  
 Person1:      Do you have regular bowel movements ?  
 Person2:  I think so .  
 Person1:      Let me take a look at your abdomen . Lie down on your back and bend your knees up . OK . relax ... Alright , it seems like you have a duodenal ulcer , but we'll have to run some tests before I can be certain . You should get a good rest first and try not to strain your stomach too much .  
 Person2:  Is it serious ?  
 Person1:      Not too serious , but it'll take you some time to recover , so you'll need to be patient . 

1