Anchor: The Kal unbuckled the straps and dropped the iron jaw to the dirt.
Entailed: The straps were unbuckled.
Contradiction: The straps were not unbuckled. 
Contradiction: I doubt it.
Contradiction: The dog is holding his toy.
Contradiction: I'm sure that wouldn't be the best choice for a dinner party.
Contradiction: The boy and girl are having their picture taken.