Anchor: A man in a white uniform rides a motocross bike down a forest trail.
Entailed: A man in white races his bike in a forest
Contradiction: A woman riding a motocross bike
Contradiction: The visitor was nothing particular to look at and was quite invisible. 
Contradiction: A skier splits his or her legs while flying through the air.
Contradiction:  A woman wearing a red jacket smiles.
Contradiction: A man who is in the crowd looks to somewhere.