Anchor: A boy takes a jump on his skateboard while another boy with a skateboard watches.
Entailed: The two boys are doing skateboard tricks.
Contradiction: The two boys are ice skating.
Contradiction: The boy is playing ball with his friend.
Contradiction: Over here its seven or something.
Contradiction: There is no chance of any exceptions occurring.
Contradiction: Spain began exporting it to France no late than the 18th century.