Anchor: A boy is sitting on the pier watching the water.
Entailed: The boy is on the pier.
Contradiction: The boy on the pier has fifteen legs.
Contradiction: A man is grilling steaks and giving away free food.
Contradiction: A snowboarder in the snow.
Contradiction: The only thing that had slowed him more was the broken nose. 
Contradiction: A tennis player is wearing a green shirt.