Anchor: Man in midair on skateboard
Entailed: A person on a transportation device.
Contradiction: A man midair on a bmx bike.
Contradiction: It is impossible to see the Appalachian Mountains and the Chesapeake Bay at the same time.
Contradiction: It is nice to be in possession of.
Contradiction: It depends on what it is watered down with.
Contradiction: Two people hold food.