Anchor: A skateboarder is jumping down three steps.
Entailed: A skateboarder is jumping.
Contradiction: A skateboarder is falling.
Contradiction: People usually do not remember contemplating in Ryoanji's rock garden.
Contradiction: One could commit genocide with the size of the pieces.
Contradiction: There is no way to live through a speed like that. 
Contradiction: A dog is holding a stick