Anchor: Two people in diving equipment examine mechanical equipment in a body of water.
Entailed: Two people are wearing diving gear.
Contradiction: A dog is swimming in the water.
Contradiction: Whenever he sees them he immediately eats them.
Contradiction: Two teams line up either side of a pylon, on a barren playing field
Contradiction: The two people are driving in a car across-country
Contradiction: A person in a shirt