Anchor: A boy rides his bike in a skate park.
Entailed: A boy biking in a skate park.
Contradiction: A boy walks around a tree.
Contradiction: The posting or mailing community has been involved at only the federal level.
Contradiction: The swimmer is wearing goggles.
Contradiction: Background information is falsified information, usually about penguins. 
Contradiction: Thus far, conservatives haven't been making much noise.