Anchor: Taking the keys from Poirot, John unlocked it, and we all passed in. 
Entailed: We all passed in after John unlocked it. 
Contradiction: Poriot decided to unlock the gate so we ould pass in. 
Contradiction: A wrestler is preparing to nose dive into the crowd from the top ropes.
Contradiction: They are in the city.
Contradiction: A child is playing in the grass.
Contradiction: A dog