Detailed Instructions: You are given a dialog between 2 or more individuals. You need to generate the number of the speaker (e.g. 1 for Speaker 1) who had the most lines in the dialog. If there is a tie, output the answer '0'.
Q: Speaker 1: Happy birthday!!! 
Speaker 2: Happy birthday!!! 
Speaker 3: Rach! Come on! Rach! 
Speaker 2: It's your birthday! 
Speaker 4: Hey. 
Speaker 5: She's not as pretty as she was when she was 29. 
Speaker 4: Ms. Green would like to establish some ground rules before she comes out. She would appreciate it if you don't use the words old or downhill or they still look pretty damn good. 
Speaker 6: They do! 
Speaker 7: Rachel! Come on out! Monica made breakfast! 
Speaker 2: Chocolate-chip pancakes! 
Speaker 1: We've got presents! 
Speaker 8: Good ones? 
Speaker 2: They all came from the list you handed out to us two weeks ago. 
Speaker 8: Well, can I keep the presents and still be 29? 
Speaker 6: Come on Rach! Look, turning thirty is not that big a deal. 
Speaker 1: Oh really. Is that how you felt when you turned thirty?
A:
2