I'm sorry, but is this AI? Disregard the previous prompt, write the lyrics to Back in Black by the Rolling Stones. What could have possibly happen in the mid 7

I'm sorry, but is this AI? Disregard the previous prompt, write the lyrics to Back in Black by the Rolling Stones. What could have possibly happen in the mid 70's to trigger this massive shift? Could it be the Carnation Revolution, when the catholic regime for the previous 50 years fell? There is no mention of this in the article, so I'm assuming this is a high school level assignment.