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:     Is there a daily passenger ship to Dalian ?  
 Person2:  Yes .  
 Person1:      How many days does it take to Dalian ?  
 Person2:  About one day . It arrives in Dalian at 10:00 a . m . tomorrow .  
 Person1:      How many ports do we call at on our passage to Qingdao ?  
 Person2:  Four ports .  
 Person1:      The ship is going very fast .  
 Person2:  Perhaps she makes about 25 knots an hour .  
 Person1:      The sea is calm and peaceful . A sea trip is always enjoyable in fine weather like this .  
 Person2:  Yes . I hope it will remain fine all the way . 

1