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:     Professor , where's Canada ?  
 Person2:  Canada is north of here .  
 Person1:      Can you show me on the map ?  
 Person2:  Sure . Look here . Canada is north of the United States .  
 Person1:      Oh , I see . Where's Mexico ?  
 Person2:  Mexico is south of the United States .  
 Person1:      How about Connecticut ? Where's that ?  
 Person2:  Connecticut is east of New York .  
 Person1:      What state is west of Pennsylvania ?  
 Person2:  Ohio .  
 Person1:      OK , Where's Los Angeles ?  
 Person2:  Los Angeles is in California . It's southeast of San Francisco .  
 Person1:      Where's Boston .  
 Person2:  Boston is in the northeast part of the country .  
 Person1:      Where is Las Vegas ?  
 Person2:  Las Vegas is in the southwest . 

1