Anchor: A boy sits on the grass near a geometric sculpture.
Entailed: A boy is sitting outside.
Contradiction: The boy is sitting on a log.
Contradiction: A photographer bounces down the stairs.
Contradiction: Kids go unpunished nowadays for things we never got away with when I was in school.
Contradiction: It would most likely save his life. 
Contradiction: Ozone can be created when NOx and volatile organic compounds are exposed to sunlight.