Anchor: A brown and white dog in front of a shed overwhelmed by the onslaught of tennis balls.
Entailed: A dog is overcome by tennis balls.
Contradiction: A black dog is swimming.
Contradiction: There's no need for that, the cable car is slower.
Contradiction: It may be fun to use a pool after a day of sightseeing.
Contradiction: People are watching monster trucks.
Contradiction: I have just watched Teenage Mutant Ninja Turtles.