Teacher:You are given a conversation between two people. 'Person1:' and 'Person2:' are used to separate their respective dialogues. Your task is to label each of the continuous conversations done by one speaker with the emotion detected in that particular part. Your labels can be one among the following: 'No emotion', 'surprise', 'happiness', 'sadness', 'anger', 'disgust'.
Teacher: Now, understand the problem? Solve this instance:  Person1:      Look ! Someone is celebrating his birthday .  
 Person2:  This must be his 21st birthday . No doubt about it .  
 Person1:       Why ? Do you know that guy ?  
 Person2:  No . Well , in America , 21 is the age when you're allowed to drink . So , many guys celebrate it in bars .  
 Person1:       That's interesting . But it would be really expensive , I suppose . Just think about all the drinks .  
 Person2:  No . If it's your birthday , then you don't need to pay a cent . Just blow out the candles and open the gifts . That makes the birthday a special day . Your friends will take care of everything .  
 Person1:       Wow . That's wonderful .  
 Person2:  What about in China ? What'd you do to celebrate your birthday ?  
 Person1:       Nowadays , it's no difference from America . But in old times , we have traditional ways to celebrate it . 
Student:
No emotion,No emotion,No emotion,No emotion,No emotion,No emotion,happiness,No emotion,No emotion