Anchor: A man and girl float on the water in an innertube.
Entailed: There are two people floating in an innertube.
Contradiction: The young couple is taking a romantic boat ride on the river.
Contradiction: a girl with a broken leg is at the beach.
Contradiction: There is no special value in payed subscribers for web advertisers.
Contradiction: Dogs work together outside.
Contradiction: Dr. Nava is doing math.