Anchor: A man in yellow rides a motocross bike down a dirt track in a forest.
Entailed: A man is outdoors.
Contradiction: A man is riding a motocross bike on pavement.
Contradiction: I wish that they will all forget me. 
Contradiction: An urban scene.
Contradiction: Gypsum requires no percentage of limestone
Contradiction: I'd not been in the watering hole for over five minutes.