Anchor: Person sitting on concrete landing next to body of water
Entailed: The person is near water.
Contradiction: The person is on a boat.
Contradiction: Black and white couples are marrying more frequently than exclusively white couples. 
Contradiction: The girls work together to decorate.
Contradiction: The man is hanging out with a friend.
Contradiction: The height of the construction is 46 meters, meaning 150 feet.