Anchor: A man does a back flip into a pool while onlookers watch.
Entailed: A man is at a pool.
Contradiction: A man rides his bicycle in a park.
Contradiction: Some people may earn their wealth through prostitution. 
Contradiction: The dog is rolling in the grass
Contradiction: The air was warm and humid, so the party members took their clothes off and skinny dipped in the ocean.
Contradiction: The man is well dressed.