Complex sentence: The 2015 NNSW FFA Cup Qualifying Rounds and Finals Series was a knockout competition run in Northern New South Wales, by Northern NSW Football, used to determine the two Northern NSW entrants to the national 2015 FFA Cup.
Split into simpler sentences: The 2015 NNSW FFA Cup Qualifying Rounds and Finals Series is a knockout competition run in Northern New South Wales, by Northern NSW Football. The series is used to determine the two Northern NSW entrants to the national 2015 FFA Cup.