Anchor: The mountain biker in blue rides down a rocky path.
Entailed: A biker descends the mountain via a rocky path on his bike.
Contradiction: A mountain biker is outside their house tuning their bike up.
Contradiction: A biker rides along a smooth dirt trail.
Contradiction: A man is riding horse.
Contradiction: The mountain biker is riding down a smooth road.
Contradiction: A man jogs up a grassy hill.