Anchor: Biker does a trick in midair.
Entailed: A person is not touching the ground.
Contradiction: A biker pedals his bicycle down the sidewalk.
Contradiction: The people produced an army known for its compassion.
Contradiction: A large crowd of young people sitting in the grass.
Contradiction: A jockey is sitting on the ground as his horse munches on some grass.
Contradiction: The teenagers are inside the classroom.