Anchor: A bmx rider does a trick against a graffiti covered wall.
Entailed: A bike rider is outside doing tricks.
Contradiction: The bike rider is sitting on a chair.
Contradiction: The team walked into the lab carrying a total of 99 individual units of clean, test-friendly piss. 
Contradiction: The human has reached the summit.
Contradiction: This was a worse place.
Contradiction: It's not real surprising that the mom works and the dad raises the kids nowadays.