Anchor: A skateboarder riding inside a swimming pool.
Entailed: There is no water in the pool.
Contradiction: The skateboarder has two broken legs.
Contradiction: Risk assessments doesn't have to be performed on a recurring basis.
Contradiction: He pounded on the door and discarded dignity, once or twice.
Contradiction: The man is wearing a blue shirt.
Contradiction: A piece gives a description of Manhattan's real-estate owners.