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:     It's quite cold this early morning , isn't it ? 
 Person2:  Yeah . It's already December , you know . 
 Person1:      Time sure flies , doesn't it ? 

1