Anchor: Perhaps an egg" 
Entailed: Maybe an egg.
Contradiction: Definitely not an egg.
Contradiction: The Ginkakuji and the Nanzenji are on the same side of the canal.
Contradiction: A firetruck is parked on the street.
Contradiction: A man in a black shirt is sitting on a chair in a library reading a book.
Contradiction: We had agreed on a truce!