I am not completely sure, but I would say that being the last of a long line of speakers refers to temporal context. Since you are last, it means that a long time will pass since it is your turn.
Answer:
The first one is: Debate and Tennis
The second one is: Debate
The third one is: Tennis
The fourth one is: Tennis
The fifth one is: Debate and Tennis
The sixth one is: Debate
The answer is “Independence”
