Complex sentence: The 1972 U.S. Open Championship was the 72nd U.S. Open played June 15--18 at Pebble Beach Golf Links in Pebble Beach, California.
Split into simpler sentences: The 1972 U.S. Open was the 72nd U.S. Open. It was played between June 15-18,1972, at Pebble Beach Golf Links in Pebble Beach, California.