Anchor: A man in a blue shirt and safety glasses grinds a piece of metal which throws sparks.
Entailed: The man is working on a piece of metal.
Contradiction: The man is sawing a piece of plywood.
Contradiction: The dog is white.
Contradiction: Every city has at least one place to get alcoholic drinks if you are above 18.
Contradiction: Now, obviously this woman, whoever she was, is doomed.
Contradiction: People are on the sidewalk.