Anchor: Two men jumping on a rock wall
Entailed: People jumping on rock wall.
Contradiction: Two men sliding down a rock wall.
Contradiction: The Peninsular War took place in France, in the late 1800's.
Contradiction: This man is wearing safety gear.
Contradiction: Johnny decided not to join the rangers after a calm discussion.  
Contradiction: It's a very busy place to to visit at Easter.