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:     Where shall we go on vacation this summer ?  
 Person2:  Well , that depends . Tell me where you want to go ?  
 Person1:      Venice . I have great interests in the boats .  
 Person2:  That's interesting to travel by boat to see the whole city that is between the sea and sky . But personally I like Greek better .  
 Person1:      I like the country too . It's quite famous for its culture . 

1