Anchor: A new, air-conditioned, state-of-the-art building has been added on to the original museum, a fine old mansion.
Entailed: The old mansion is the museum and has recently been expanded.
Contradiction: The museum no longer exists as it was destroyed to build a new one.
Contradiction: A crane is floating on the ocean.
Contradiction: They succumb in order to get the better treatment. 
Contradiction: I don't watch pro football or basketball.
Contradiction: You need to make sure each cultural group is respected in different activities.