Anchor: uh you know if you have a large acid spill you know well gee maybe you better check this person who's handling all these acids you know i work with a wafer fab so we do a lot with chemicals and acids and
Entailed: Acid is handled by workers. 
Contradiction: We don't really handle a lot of acids. 
Contradiction: The people are being swept away to their doom
Contradiction: The boy is jumping.
Contradiction: A man takes a drink in a cave.
Contradiction: The study can be retrospective.