Complex sentence: Unbreakable was a professional wrestling pay-per-view (PPV) event produced by the Total Nonstop Action Wrestling (TNA) promotion, which took place on September 11,2005 at the TNA Impact !
Split into simpler sentences: Unbreakable was a professional wrestling pay-per-view event held by Total Nonstop Action Wrestling. It took place on September 11,2005 from the TNA Impact!