Complex sentence: Produkt is the first rapper to be nominated for 10 single-year underground music awards and, in 2014, set a single-year record by winning three Underground Music Awards, the most in the UMA's 11-year history.
Split into simpler sentences: Produkt is the first rapper to be nominated for 10 single-year Underground Music Awards. In 2014, he set a single-year record by winning three Underground Music Awards, the most in the UMA's 11-year history.