Anchor: Two martial artists compete before a referee and onlookers.
Entailed: Two martial artists are in a competition.
Contradiction: Boxers are boxing in the ring.
Contradiction: The boy is tap dancing on the stage.
Contradiction: A man is wresting with another in a ring.
Contradiction: The auditors have no way of getting access to the information.
Contradiction: Some of the powders had an effect on strychnine.