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:     What's the weather forecast for today ?  
 Person2:  Cloudy in the morning , overcast in the afternoon .  
 Person1:      Any rain ?  
 Person2:  No , but I wouldn't be surprised if it rained tomorrow .  
 Person1:      I wouldn't either . It's been looking like rain for several days . 

1