Anchor: Two individuals underwater scuba diving.
Entailed: Two divers are underwater.
Contradiction: The people can't dive today because of the weather.
Contradiction: A man smokes a cigarette in his car.
Contradiction: Guests may be arranged to play at one of the tennis clubs at the big hotels. 
Contradiction: A boy playing basketball inside.
Contradiction: The steps connect the older and newer parts of town.