Complex sentence: Ruhrpott AG (RAG) was a German hip hop group from Bochum, which first found recognition in the German-language rap scene in 1998 with the album "Unter Tage".
Split into simpler sentences: Ruhrpott AG (RAG) was a German hip hop group from Bochum. RAG first found recognition in the German hip hop scene in 1998, with the album "Unter Tage".