Anchor: At last he heaved a deep sigh. 
Entailed: He breathed deeply.
Contradiction: He took shallow breaths.
Contradiction: Anyone is allowed to dive here, and people come from all over the world to enjoy the waters free from any supervision.
Contradiction: Lessons are taught in English and Chinese. 
Contradiction: He is jumping up and down on the stage.
Contradiction: Is it possible that this empty place was where Tuppence ended up?