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:     Hello , Kith , can you and Alice come around this evening ? We prefer your coming .  
 Person2:  I think we would be able to make it.What time shall we come ?  
 Person1:      About 7 o'clock .  
 Person2:  Shall we bring any thing ? Some wine ?  
 Person1:      No , not really.Just bring yourselves . We would like to your presence . 

1