Anchor: A dirt biker showing his biking skills on an off road course in the woods.
Entailed: A dirt biker is riding outside.
Contradiction: A man is dirt biking on the beach.
Contradiction: The woman is fishing form her boat.
Contradiction: girls are playing soccer
Contradiction: When using the same test to screen communities with lower case rates, the test works good if not better. 
Contradiction: A man is standing near a vehicle.