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:     Where are you from ? 
 Person2:  I'm from Guangzhou . 
 Person1:      Where in China is Guangzhou ? 
 Person2:  It's in the South of China . 

1