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:     There are things that are actually even smaller than atoms .  
 Person2:  What are those ?  
 Person1:      They are the things that make up the atom , such as electrons and protons .  
 Person2:  Is there anything that is smaller than electrons and protons ?  
 Person1:      Of course there is . Things can be divided and broken down into indefinitely small parts if we can .  
 Person2:  I really don't want to know about this . Physics gives me a headache . 

0