Complex sentence: The 1974 U.S. Open was the 74th U.S. Open, held June 13--16 at Winged Foot Golf Club in Mamaroneck, New York, a suburb northeast of New York City.
Split into simpler sentences: The 1974 U.S. Open was the 74th U.S. Open. The golf tournament was held June 13--16,1974, at Winged Foot Golf Club in Mamaroneck, New York, a suburb northeast of New York City.