Anchor: A man is getting ready to hit a tennis ball.
Entailed: A man is about to hit a tennis ball.
Contradiction: A woman is hitting a baseball.
Contradiction: I've been many times, so I know they are
Contradiction: A child is smiling at the sppon
Contradiction: National saving and borrowing from abroad harm investment greatly and deplete its resources. 
Contradiction: A person and his dog walking down a street at night.