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 know Yahoo Greetings , Edgar ? 
 Person2:  Sure . It's a popular e-card website . 
 Person1:      Can you tell me how to send one on it ? 
 Person2:  Okay . Did you get the Yahoo ID ? 
 Person1:      ID ? What's that ? 
 Person2:  I mean , you must register first before you send a card . 
 Person1:      Oh . I see . But I have done it . 
 Person2:  Ok . Choose the card which you like best , and fill in the following blanks with both your and your friend's names and e-mail addresses . 
 Person1:      Is that all ? 
 Person2:  Don't forget to send . 
 Person1:      Oh . I see . Thanks . 

1