1968 U.S. Open
{'<entity_0>': 'Oak Hill Country Club', '<entity_1>': '1968 U.S. Open', '<entity_2>': 'U.S. Open', '<entity_3>': 'Rochester'}
[['1968 U.S. Open', 'instance of', 'U.S. Open'], ['1968 U.S. Open', 'location', 'Oak Hill Country Club'], ['1968 U.S. Open', 'location', 'Rochester']]
The <entity_1> was the 68th <entity_2>, held June 13–16 at the East Course of <entity_0> in <entity_3>, New York.
['U.S. Open']