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:     Do you mind if we call on you this evening ?  
 Person2:  Of course not , we'd be happy if you could come.What time will you be able to come ?  
 Person1:      How about seven o'clock ?  
 Person2:  Fine.We ' ll be expecting you . 

0