Complex sentence: Sydney Wind Symphony has competed regularly in the A Grade Open Concert Band Competition and was declared National Champion in 2004 National Band Council of Australia, 2004 Results and New South Wales State Champion in 2003 and 2005.
Split into simpler sentences: Sydney Wind Symphony competes regularly in the A Grade Open Concert Band Competition. It was declared National Champion in 2004 National Band Council of Australia, 2004 Results and New South Wales State Champion in 2003 and 2005.