Complex sentence: The 1968 U.S. Open was the 68th U.S. Open, held June 13--16 at the East Course of Oak Hill Country Club in Rochester, New York.
Split into simpler sentences: The 1968 U.S. Open was the 68th U.S. Open. The golf tournament was held June 13--16,1968, at Oak Hill Country Club in Rochester, New York.