Anchor: A child standing on stairs is handing a piece of paper to a seated man.
Entailed: A child standing on stairs handing a paper to a man sitting down.
Contradiction: A child standing on stairs handing a paper to a woman sitting down.
Contradiction: The biker retired from performing 5 years ago.
Contradiction: I use my computer regularly, and not just for basic computer tasks. 
Contradiction: A woman passes a man in a bar.
Contradiction: His classis has more than half a dozen editions.