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 like playing table tennis ?  
 Person2:  Certainly .  
 Person1:      When did you start it ?  
 Person2:  Several years ago . 

1