Anchor: Person standing beside bike in stream.
Entailed: Someone is standing
Contradiction: There is no water nearby
Contradiction: An old man stands in the middle of the sidewalk.
Contradiction: An increase in payroll taxes would be required to avoid a shortfall for 75 years.
Contradiction: The children are in all white karate uniforms and  are standing on the red mat.
Contradiction: There is a statue with a person looking at it.