Complex sentence: As well as horse racing, Punchestown is a noted venue for its music festivals Creamfields held in 2000,2001 and 2002, Witnness held in 2000,2001,2002 and 2003 and the current favourite Oxegen held there each year since 2004.
Split into simpler sentences: As well as horse racing, Punchestown is a noted venue for its music festivals. Witnness-held in 2000,2001,2002 and 2003; and the current favourite Oxegen held there each year since 2004.