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:     Hi , Sandra . how was your weekend ?  
 Person2:  Great ! I went hiking in the mountains on Saturday .  
 Person1:      Fantastic ! how was that ?  
 Person2:  Really good ! you should try it sometime .  
 Person1:      I might . what did you do yesterday ?  
 Person2:  Uh , nothing much , just went to bed early . I was still tired from Saturday . 

1