Anchor: A young guy is a red shirt performing skateboard trick.
Entailed: A man on a skateboard.
Contradiction: A woman roller skates in a park.
Contradiction: The boy and girl are looking opposite ways of each other.
Contradiction: Two people are walking by the beach.
Contradiction: The date and provenance are not important and there is no need to provide this information. 
Contradiction: A man is sitting on a bench.