Anchor: A small brown and black dog playing with a toy
Entailed: An animal is playing.
Contradiction: A dog is digging a hole by the lake.
Contradiction: Santorini has no dive sites of any kind. 
Contradiction: Alec dated lots of people before he married Basinger.
Contradiction: The kids are in the classroom learning math
Contradiction: At that time period, we lived in New Hampshire.