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:     Tomorrow's Carl's birthday ?  
 Person2:  Yes.Let ' s hold a birthday party for him , shall we ?  
 Person1:      Good idea ! Let's make ready , then . 

1