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 . Are you new in this class ? 
 Person2:  Yes , I am . I really don't know anyone . 
 Person1:      My name is Steven . What's your name ? 
 Person2:  My name is Bill . How are your lessons going ? 
 Person1:      Very well . And my favorite subject is Chinese . 
 Person2:  I prefer to learn English . In my opinion , English is easier than Chinese . 
 Person1:      I guess English has fewer characters . 
 Person2:  You are right . 

1