Anchor: Three dogs on grass, one with a blue ball in its mouth.
Entailed: There are some dogs on the grass.
Contradiction: A person standing by a statue.
Contradiction: The monstrous mass turned away, passing onto another path on the road. 
Contradiction: I think it's more humane than the electric chair or the gas chamber.
Contradiction: After reading the book about Microsoft, I think Stross has a lot of people who are equally smart.
Contradiction: People are sitting together.