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:     I can't find proper parking space .  
 Person2:  Let's just park here .  
 Person1:      No , there's no parking sign .  
 Person2:  Oh , the policeman's coming . 

0