Anchor: a man wakeboards on a lake.
Entailed: A man practices his wakeboarding hobby.
Contradiction: A man sitting under an umbrella at the beach sees a surfer as she's swept away by a strong wave
Contradiction: A man swims in a pool.
Contradiction: The man is fencing a bear in a tennis court.
Contradiction: A man is hiking
Contradiction: A woman wakeboards on a lake.