Anchor: Four construction workers are working at night in the city by the water.
Entailed: The workers are not wearing bathing suits.
Contradiction: The workers are seated at a table playing bridge.
Contradiction: I stayed in my car while it snowed. 
Contradiction: There are reported correlations between long-term PM exposure and mortality in men.
Contradiction: Even thought the sun was hot, they never sat down.
Contradiction: a person is walking dogs on a sidewalk.