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:     How can we avoid the jam ? 
 Person2:  Let's take a roundabout way . 
 Person1:      OK . 
 Person2:  Look , traffic jam again ! 

1