Anchor: A man is sitting in a chair at a table surrounded by a bunch of people.
Entailed: A man is at a table.
Contradiction: No one is at the table.
Contradiction: It was not helpful to us in the slightest.
Contradiction: The Maryland Shock Trauma Center admits nearly 6,000 patients annually. 
Contradiction: All criminals listen to their parole agents and do what they are told.  
Contradiction: Dogs are playing with a toy.