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:     Don't you think we ' d leave for the concert now ?  
 Person2:  What time dose it start ?  
 Person1:      In about 25 minutes .  
 Person2:  Then we'd better get started . 

0