Anchor: Heart failure, or possibly an overdose of some sleepingdraught. He sniffed.
Entailed: He thought it was heart failure or an overdose.
Contradiction: She had gotten shot.
Contradiction: A woman with blond hair concentrates while sitting in front of water.
Contradiction: The man carried on. 
Contradiction: The power generators are the only source for mercury.
Contradiction: A person climbing a tower.