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:     Did you know that drinking beer helps you sing better ? 
 Person2:  Are you sure ? How do you know ? 
 Person1:      Well , usually people think I'm a terrible singer , but after we all have a few beers , they say I sound a lot better ! 
 Person2:  Well , I heard that if you drink enough beer , you can speak foreign languages better ... 

1