Anchor: A brown dog leaps into the air to catch a dirty tennis ball in its mouth.
Entailed: A dog is jumping to catch a tennis ball.
Contradiction: A dog is sleeping on the floor.
Contradiction: Only define the outcomes that are desired.
Contradiction: A man on a bridge holds an object over the rail.
Contradiction: The Jamaican villas cast their Old World heritage aside, creating a modern atmosphere with contemporary American architecture. 
Contradiction: A person is sitting at a desk