Anchor: He felt someone grab at him--more than one person--and they were dragging him willy-nilly across the ground.
Entailed: He was not being carefully moved by the hands. 
Contradiction: Only one person held on to him.
Contradiction: Jon did not draw anything, as he had no pencil.
Contradiction: The black dog is playing with a ball.
Contradiction: You are healthy.
Contradiction: The child is holding the dog outside.