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 a fine day today , isn't it ?  
 Person2:  Yes , it is.It ' s wonderful after the downpour .  
 Person1:      How nice seeing the sun back again ! The air is so fresh .  
 Person2:  I hope it stays nice like this for a long period of time .  
 Person1:      Well , the weather is so unpredictable this time of year .  
 Person2:  You're right.We don't know what is going to be like tomorrow .  
 Person1:      Look ! It looks as if it is going to rain .  
 Person2:  The weatherman predicts a fine day today .  
 Person1:      The weather is often quite different from the weather forecast . 

1