Anchor: A little boy and girl riding their bikes down the sidewalk with training wheels on.
Entailed: A boy and girl learn to ride their bikes.
Contradiction: Two children are robbing a bank.
Contradiction: Two kids ride their unicycle.
Contradiction: Three children are playing on the swings.
Contradiction: A boy and girl riding their bikes in the street.
Contradiction: The kids broke the vase as they rode the skateboard indoors.