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:     Hello , my name is Xu Hua . I'm from Beijing .  
 Person2:  Hello , Xu Hua . I'm Paula . I'm American .  
 Person1:      Welcome to China , Paula .  
 Person2:  Thank you . 

0