Anchor: A surfer in a wetsuit rides a wave.
Entailed: A person is surfing.
Contradiction: A person is paddling out to the waves.
Contradiction: The man's color remained rosy.
Contradiction: It assumes that all particles have the same toxicity.
Contradiction: Slate readers have indicated that they do not want to read any more stories about Monica. 
Contradiction: The proposed rule requires sources to document each process.