Anchor: Two men riding horses in a rodeo while chasing after a bull.
Entailed: The two men are trained horse riders.
Contradiction: The two men are chasing after a pig.
Contradiction: The young man is jumping rope.
Contradiction: There is a chance that this could be a serious offense.
Contradiction: A boy is playing in a treeless field.
Contradiction: Joe examined a fish at the fish processing plant.