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:     I heard there is a big yard sale at weeks this saturday morning , i will go there to see if there is some nice clothes , do you want to go with me ? 
 Person2:  Well , i want to go to the university flea market , they got times of books , DVDs , and a lot of nice clothing , too . 
 Person1:      How about we go to the yard sale first and then to the university flea market ? 
 Person2:  Good idea , let's shop to we drop ! 

1