Anchor: Men are playing with a volleyball in a pool.
Entailed: There are men in a pool.
Contradiction: Men are swimming laps in a pool.
Contradiction: So far, all stakeholders have found it very easy to walk the line and the environmental goal has already been achieved.
Contradiction: He  spoke quietly.
Contradiction: Marine life is completely unaffected, as both fish and shellfish populations are growing exponentially.
Contradiction: A human holding an animal.