Anchor: A competition is occurring between three people in a swimming pool.
Entailed: 3 people in a pool
Contradiction: 3 kids in a sandbox
Contradiction: In the safari park, the animals are chained or caged up for safety.
Contradiction: Global corporations benefit from the common currency more than individual nations. 
Contradiction: a group at a beach playing nude vollyball
Contradiction: A man is praying.