Complex sentence: The 1967 U.S. Open was the 67th U.S. Open, held June 15--18 at Baltusrol Golf Club in Springfield, New Jersey.
Split into simpler sentences: The 1967 U.S. Open was the 67th U.S. Open. The golf tournament was held June 15--18,1967, at Baltusrol Golf Club in Springfield, New Jersey.