Anchor: At the time, it was the tallest structure in the world.
Entailed: This structure was the tallest one in the world.
Contradiction: This structure low and squat, with the widest perimeter in the region.
Contradiction: Child wearing a brown shirt eats an apple.
Contradiction: The snowboarder is doing a trick.
Contradiction: Professor Suwak is not an inventor, but rather a mathematician. 
Contradiction: Two women looking at a table.