Anchor: A woman demonstrates how to operate a vacuum cleaner while others watch.
Entailed: A woman is using a vacuum cleaner in front of others.
Contradiction: A woman is cooking dinner.
Contradiction: A dog sleeps by the beach
Contradiction: A man and woman are outside
Contradiction: He finally showed the jury that John Cavendish is guilty without a doubt. 
Contradiction: A woman is preparing sandwiches.