Anchor: The German shepherd dog is trying to catch a blue ball.
Entailed: There is a German shepherd playing with a ball.
Contradiction: The German shepherd is sitting on a bed.
Contradiction: The climber is taking a rest on the side of the mountain after a long and arduous climb.
Contradiction: Clinical experiments have shown that high doses of calcium can build bone in older women. 
Contradiction: The crane is idle with noone controlling it.
Contradiction: Technical efficiency is believed to be one of the results of competition.