Anchor: Sustained flight permissible if vampire takes the form of a bat, owl, or other authentic nocturnal species.
Entailed: A vampire can fly if it turns into a bat, owl or other nocturnal animal. 
Contradiction: Vampires can never fly, as they do not exist. 
Contradiction: A man skinny dipping in the oceam.
Contradiction: a man is walking
Contradiction: Gifts are more valued than things you earn yourself.
Contradiction: Everyone thinks that they're the best.