Anchor: Snorkeling, Skin Diving, Scuba Diving
Entailed: Scuba Diving, Skin Diving, Snorkeling.
Contradiction: Skin Diving, Snorkeling and Scuba Diving are not included.
Contradiction: two men play basketball with stern looks
Contradiction: a young guy skateboards
Contradiction: A dog watches the snow fall inside.
Contradiction: the dog is outdoors