Anchor: 8 billion pieces in 1997.
Entailed: In 1997, there were 8 billion pieces.
Contradiction: 4 billion pieces in 1997.
Contradiction: It was way too cold to be wearing short sleeved shirts.  
Contradiction: A man is drawing a picture of a woman.
Contradiction: An adult riding a motorcycle to work.
Contradiction: A person sitting at a table.