Anchor: A viceroy ruled each island at the King's pleasure.
Entailed: Each island had a viceroy.
Contradiction: All the islands had one viceroy.
Contradiction: The cat is running with his toy in his mouth.
Contradiction: He is drumming up nationalist sentiment with his appeals to suspicion.
Contradiction: Browsers and operating systems are always considered identical.
Contradiction: Two women are walking down the street.