Anchor: A skateboarder is jumping almost as high as a building.
Entailed: There is a skateboarder jumping
Contradiction: There is a skateboarder sitting down outdoors on his skateboard
Contradiction: They stayed around for another week.
Contradiction: On his world this sort of work would have killed him.
Contradiction: Two friends are watching a movie.
Contradiction: Business and technology interests can work together.