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5 - 2, a role-playing wedding, or set in some fantasy/medieval setting, if you don't pay attention to the lyrics. I wouldn't mind the second option; it would be interesting to see.
8 - 3, just a pleasant song.
11 - 5. I think it's suitable for their wedding; it would be interesting to attend such an event.
13 - 4. I think they could play this at a regular wedding, so it gets a plus.