Anchor: Two motocross riders race on a dirt track.
Entailed: Two motocross riders riding on a dirt track.
Contradiction: Two bicyclists racing on a road.
Contradiction: The FDA's position is that reductions in personal property value definitely do establish a taking. 
Contradiction: A person is standing
Contradiction: Here is a place that sells food and nothing unusual.
Contradiction: A person is mixing chemicals.