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:     what do you do when you see a homeless person on the streets begging for money ? 
 Person2:  I never really give them money because I don't want to contribute to their addictions . 
 Person1:      homeless youth can easily become involved with drugs and prostitution . Do you do anything to help them ? 
 Person2:  I usually ask them if they want some food and then give them something to eat . I figure that if they're homeless , they're probably hungry . 
 Person1:      that's a good idea . Do they usually accept the food ? 
 Person2:  almost always . However , sometimes they get mad at me for not giving them any cash . 
 Person1:      it's sad how more and more young people are sleeping on the streets in London now . 
 Person2:  the cost of living in London is just too high for most people . 
 Person1:      it's true . The economy is in a bit of mess at the moment . 
 Person2:  did you know that few people can pay the rent on minimum wage , let alone pay for food and other living costs ? 
 Person1:      there just isn't enough affordable housing to go around . If only the housing cost would drop , fewer people would be in financial trouble . 
 Person2:  added to that is the high unemployment rate right now . 
 Person1:      something's got to change---and it's got to happen soon . 
 Person2:  politicians like to ignore the problems of the working class . They like to focus on making life easier for the upper class . 
 Person1:      I can only hope that one day they will change . 

1