Anchor: A child is playing on a swing set.
Entailed: A juvenile playing outside.
Contradiction: A child is playing on a dinosaur.
Contradiction: This has left us completely baffled and we cannot identify any factors which would contribute to it.
Contradiction: A human racing
Contradiction: She and Amos Finn were very much alive and they had no daughter.  
Contradiction: two people are looking at a display case.