Anchor: A boy at a skate park is at the apex of his trick while other boys look on.
Entailed: A kid performing a trick at a skate park.
Contradiction: A group of children fishing at a pond.
Contradiction: They have a brand new great house.
Contradiction: The past history of this entity is unclear based on the information we know.
Contradiction: the skateboarder is doing a trick
Contradiction: A man with glasses is holding a guitar.