Anchor: Four young adults are working on an upside down bicycle in a park.
Entailed: A group is near a bike.
Contradiction: A group is playing basketball
Contradiction: The room seemed weather proof. 
Contradiction: A man holds a plate.
Contradiction: The attack of the American fleet at Pearl Harbor ended the war.
Contradiction: The management awareness rating will be lowered if the auditors discover any serious but unrecognized weaknesses.