Anchor: They might be--  But the canvas had been jerked off and there they were.
Entailed: They were under the canvas.
Contradiction: They weren't there when the canvas was moved.
Contradiction: The authors are discouraged by the tiniest deviation.
Contradiction: The man is looking in a bag
Contradiction: People are sitting on a train in the middle of nowhere.
Contradiction: There are mountains in the background.