Anchor: Two dogs are fighting over a toy and another dog is chasing them.
Entailed: Three dogs are being active.
Contradiction: The three dogs are sleeping.
Contradiction: The fathers need to step back and let the mothers have a more active role. 
Contradiction: Archeologists dig in old ruins as part of their work.
Contradiction: The batter hands a golf club back to his caddy.
Contradiction: A child is on a swing set.