Anchor: The man who came up the staircase with a furtive, softfooted tread was quite unknown to Tommy.
Entailed: Tommy did not recognize the man who came up the stairs.
Contradiction: Tommy quickly recognized the man who came up the stairs with a sure tread.
Contradiction: Two girls are sitting in school
Contradiction: Someone didn't tell them something.
Contradiction: In Islam, the commerce zone contains only brand new shops.
Contradiction: A glazier at work.