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 does your sister look like , Mike ?  
 Person2:  Well , she ’ s tall and pretty .  
 Person1:      Is she like you ?  
 Person2:  I suppose so . We ’ re both friendly and easy-going .  
 Person1:      Is she as clever as you ?  
 Person2:  No , she ’ s not as clever as me .  
 Person1:      Big head ! 

1