Anchor: It was extremely unlikely that Albert would have any knowledge of it indeed, it would have been fatal for Tuppence's plans, since the badge in question was the device of a local training corps originated by the archdeacon in the early days of the war.
Entailed: Chances were, Albert didn't know anything about it.
Contradiction: Albert knew everything about it.
Contradiction: The man has an iguana.
Contradiction: It is not in our interest to trash the Earth.
Contradiction: Nobody is sitting.
Contradiction: There is snow on the ground.