Anchor: An elderly man in Arab clothes is walking down a sidewalk with a cane.
Entailed: an elderly man has arab clothes
Contradiction: the man is young
Contradiction: Data-collection methods are not covered in the data-collection guidelines.
Contradiction: I think he might be addicted to using the credit cards. 
Contradiction: The study was highly informal and collected only anecdotal evidence.
Contradiction: A human reading