Anchor: An orchestra is sitting in a concert hall under bright lights.
Entailed: The brightly light concert hall held an orchestra.
Contradiction: A marching band played at the football game.
Contradiction: It would be pointless to develop an estimate of mail revenues.
Contradiction: They stayed in it for the money.
Contradiction: Three nursed are sleeping
Contradiction: In the dim light, he noticed that the plant had vanished.