Anchor: Inaugurated in 1919, the building is the quite remarkable central post office, with high ceilings and overhead walkways.
Entailed: The central post office is quite remarkable.
Contradiction: The central post office has remarkable low ceilings.
Contradiction: There are no public golf courses in LA.
Contradiction: It's a good way to socialize with people. 
Contradiction: A motorcyclist is taking apart his motorcycle on the beach.
Contradiction: There was something strange about the document.