Anchor: An old man is wearing a black jacket.
Entailed: The elderly gentlman is wearing a black jacket.
Contradiction: The old man is wearing nothing that is black.
Contradiction: The foreman was an old coal-miner from Portugal, he never saw or set foot in Mexico. 
Contradiction: A woman has multiple children.
Contradiction: There are too many people in Montana and Wyoming.
Contradiction: A human walking