Anchor: US president John F. Kennedy imposed a naval blockade on the island to ensure no more missiles arrived and insisted that the existing ones be removed.
Entailed: US president John F. Kennedy imposed a naval blockade in order to prevent the proliferation of weapons.
Contradiction: US president John F. Kennedy was pleased with the missile deployment. 
Contradiction: People who live in Chennai have to travel to the next town ten miles away to visit a post office.
Contradiction: A statute was passed in 1994 that addressed frequent traveler benefits.
Contradiction: I don't get any mail at all.
Contradiction: A group of men are playing instruments.