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's wrong , Dave ? You look down today .  
 Person2:  I didn't pass the English exam . How to learn English well ? Can you give me some suggestions ?  
 Person1:      Well , English is a " paper tiger " . Its natural enemy is adequate practice .  
 Person2:  I have done a lot of reading comprehension exercises , and I also spend much time in memorizing English words .  
 Person1:      I suggest you read English texts aloud every day , and try to speak more . That will be beneficial to cultivate your sense of the language .  
 Person2:  Really ? I'll have a try . Maybe I will get high marks next time . 

1