Given the task definition and input, reply with output. 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'.

Speaker 1: Here you are.
Speaker 2: Thank you Joey. You know what? I'm not even sure I can have caffeine.
Speaker 3: I went through this with Ben and Carol. One cup of coffee won't affect your milk.
Speaker 2: Yeah. Just to be sure I'm gonna call Dr. Wiener.
Speaker 2: Every time?
Speaker 1: Uhuh.
Speaker 3: Rach, you don't have to call whenever you have a little question, okay? Trust me, I know this.
Speaker 2: All right, I trust you.
Speaker 3: Rachel, I can see you dialing! I don't understand why...
Speaker 2: I'm on the phone! Dr. Wiener?
2