Anchor: a motocross bike is jumping through the air between two lines of red tape.
Entailed: The bike has no tires touching the ground.
Contradiction: The little boy is trying to rollerskate between the 2 yellow chalk lines on the sidewalk.
Contradiction: A parade fills the street.
Contradiction: A group is taking a stroll outdoors
Contradiction: Patients wit severe alcohol problems can be completely ignored. 
Contradiction: People running in a marathon.