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 city where it's always warm ?  
 Person2:  Yes , there are many cities where it's almost always warm.San Diego , for example .  
 Person1:      Are there any other cities where it's always hot ?  
 Person2:  Many.Most of the cities in the southern part of the United States are hot all year .  
 Person1:      But why do so many people live there ?  
 Person2:  Most people grow accustomed to the climate , but there are many others who complain about it all the time .  
 Person1:      Are there any cities where it rains a lot ?  
 Person2:  Several.Two good examples are Seattle , in the state of Washington , and Portland , Oregon .  
 Person1:      Tell us about some cold cities .  
 Person2:  In the north there are many cities which are very cold in the winter.Boston and Chicago are two of them .  
 Person1:      Is it always cold in Chicago and Boston ?  
 Person2:  Oh , no.On the contrary , there are many beautiful days , especially in the spring and fall . 

1