Anchor: A teenage boy grinds his skateboard over a red rail.
Entailed: A young boy was doing tricks on his skateboard.
Contradiction: The teenage boy twirled a basketball on his finger, while walking across the gymnasium floor.
Contradiction: The woman is not wearing an apron.
Contradiction: Three people are playing musical instruments.
Contradiction: I'm glad you told me about this last week.
Contradiction: A girl is wearing a dress.