Anchor: A mountain biker is jumping his bike over a rock as another cyclist stands on the trail watching.
Entailed: The bike is flying through the air.
Contradiction: The biker is sitting down.
Contradiction: A mountain biker obeys traffic signals while commuting to work.
Contradiction: Two people are eating lunch.
Contradiction: Skateboarder shreds the street course.
Contradiction: A man rides skates in a skating rink.