Anchor: Curiosities such as the Arches and the Mushroom Rock are self-explanatory.
Entailed: The Arches and Mushroom Rock are curiosities.
Contradiction: The Arches and the Mushroom Rock require a lot of explaining.
Contradiction: The child is sitting on a picnic blanket.
Contradiction: There are plenty of general construction labor forces in place to install these technologies. 
Contradiction: It's obvious that a deranged architect designed this building with non-functional staircases. 
Contradiction: The fact that Enron's accounting is hard to understand--and defend--led to its downfall.