Anchor: A man on Rollerblades travelling down the sidewalk.
Entailed: A man is rollerblading outdoors.
Contradiction: The man is upside down.
Contradiction: Archaeologists found nothing at all on their search for ancient artifacts. 
Contradiction: He is far away from the water-hole route.
Contradiction: Two people are walking in an arid desert.
Contradiction: My wife is immature.