Anchor: Three people with swim caps are swimming in parallel tracks in a large pool, while in the background three other men are walking along the edge of the pool, two in swimsuits, and one in a red shirt and jeans.
Entailed: The swimmers are swimming while others are walking along the edge of the pool.
Contradiction: The people are all in the hot tub.
Contradiction: When an update is posted to the site, subscribers are notified by post.
Contradiction: the people are on the horses
Contradiction: The rules cover registration, preparation of risk management plans and maintenance of documentation that takes place off site. 
Contradiction: Carrying a bag is something no one would be caught dead doing.