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According to Extreme Metal: Music and Culture on the Edge by Keith Kahn-Harris, there are five primary genres of extreme heavy metal music. Name three of those five genres, which have names beginning with the letters B, D, D, S, and T, respectively.
Since the 1970 AFL-NFL merger, two universities have had more players go on to appear in a Super Bowl than any other school, each with 65. Name either of those schools.