Anchor: A skateboarder performs a skateboard trick against a graffiti wall.
Entailed: A person is riding a skateboard.
Contradiction: A skateboarder is sitting in his board.
Contradiction: the man is silent
Contradiction: Two kids are being squirted by a water pistol.
Contradiction: There is no way to accelerate the departure of the mail from the system.
Contradiction: people were walking