Anchor: 5 and 8-hour ozone nonattainment were determined by rolling back current air quality levels.
Entailed: Rolling back current air quality levels determined ozone levels.
Contradiction: Nonattainment was not possible.
Contradiction: The hipster is not proud of his banners.
Contradiction: a boat at a dock
Contradiction: Two boys writing poetry in class.
Contradiction: The woman is an adult