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:     Can I have this roll of film developed here ?  
 Person2:  Sure . Let's see it .  
 Person1:      Here you are .  
 Person2:  What size of prints would you like to have ?  
 Person1:      Regular will be fine . How long will it take ?  
 Person2:  Only four hours .  
 Person1:      Good . I'll come back in the evening . 

0