Anchor: A person with a red helmet is riding a scooter near a person riding a bicycle on a cobblestone street.
Entailed: The two people are on the street.
Contradiction: They are both walking.
Contradiction: The man is wearing a pink shirt.
Contradiction: A young person is standing on one leg.
Contradiction: The man is a the bowling alley.
Contradiction: Yearly sulfur dioxide emissions have fallen by half below the allowed levels.