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:     Great party , isn ’ t it ?  
 Person2:  Yeah , really .  
 Person1:      By the way , my name is Liu Wei .  
 Person2:  Hi , I ’ m Susan Marshall , You can call me Susan.Nice to meet you .  
 Person1:      What do you do , Susan ?  
 Person2:  Well , I ’ m a college student.How about you ?  
 Person1:      I work for the Bank of China , in the International Section . 

1