Anchor: These two workers are working on putting up some kind of metal building.
Entailed: The workers are working.
Contradiction: The workers are driving trucks.
Contradiction: There is a woman with a red hat on her hand.
Contradiction: One may wish to allow extra days for unforeseen circumstances.
Contradiction: An employee is talking with her boss in his office.
Contradiction: Two young people dressed in winter clothes play in a mound of snow.